Participants of the 2023 Stone Bridge Nighthawk Watch. Photo by Kathy Ishizuka
By John Turner and Patrice Domeischel
The 2023 season of the Stone Bridge Nighthawk Watch, run by the Four Harbors Audubon Society (4HAS) in cooperation with Frank Melville Memorial Park in Setauket, came to a close on Oct. 6 with 36 Common Nighthawks observed, many of which circled overhead as they actively fed on aerial insects above both ponds. We suspected the birds were feeding on a recent hatch of aquatic insects — midges, gnats, etc. — supplied by the nurturing waters of the ponds.
The Watch runs annually from 5:30 p.m. to dusk from Aug. 27 to Oct. 6, and is designed to count Common Nighthawks migrating from New England and eastern Canada during their southbound autumn migration. Many pass over Long Island on their journey to the Amazon region of South America so Long Island serves as a “migratory motel” for this species.
The seasonal total was 1,022 nighthawks, by far the lowest total 4HAS has tallied in the seven years we’ve been conducting the count. Previous totals (year — number of common nighthawks seen) were: 2017 — 2,046; 2018 — 2,018; 2019 — 2,757; 2020 — 2,245; 2021 — 1,819, 2022 — 1,625; 2023 — 1,022.
We don’t have a clear reason why the total was so much lower than in past years.The numbers were “dampened” somewhat by three days in a row of rainy weather at the Watch, the first time this has ever happened. We speculate the fires that have raged for so long in eastern Canada, where some common nighthawks breed, also played a role in either affecting reproductive success or shifting their migrational movements away from smoke and Long Island.
We thank the many dozens of people who visited the Watch this year including two individuals from California and one from New Zealand! It was fun to be able to tally nighthawks together and to marvel at their abilities in flight and their long distance migratory exploits.
It was also rewarding to answer the questions posed by inquisitive visitors to the park as they walked by on the Stone Bridge, inquiring what the crowd of birders were doing. Hundreds of individuals now know a little bit more about nighthawk ecology and migration and the challenges these birds face as they head to overwinter in the Amazon.
Visitors also learned about the current plight many migratory birds face and what they can do to help birds, such as putting decals on their windows, making their pet cat an indoor cat, drinking shade-grown coffee, and limiting the use of pesticides and other chemicals.
See you next August!
John Turner and Patrice Domeischel are members of the Four Harbors Audubon Society.
A Column Promoting a More Earth-Friendly Lifestyle
By John L. Turner
John Turner
Visit a Repair Café!
All too often in our throwaway society an appliance that no longer functions is thrown away and a new one purchased. Setting aside the fact there really is no “away” on our planet, many items can be readily fixed or repaired, preventing the item from taking up space at the local landfill. Enter the Repair Café which has a neat mission: “To transform our throwaway society one item at a time.”
As their website indicates, Repair Cafés are meeting places where you can bring an item that needs repair to local volunteers who have the expertise to fix them. There is a cost for a replacement part, but the labor is provided for free. There are 191 Repair Cafés in the United States and nearly 2,500 cafés worldwide, most of which are in Europe.
What types of items can be fixed? A partial list includes jewelry, clothing, various tools (including those which need sharpening), lamps, many types of small appliances, some furniture such as chairs, vacuum cleaners, bicycles, and toys.
While the main office for Long Island Repair Café (they have a Facebook page) is at 1424 Straight Path in Wyandanch, run by Starflower Experiences, an environmental educational organization, volunteers host repair cafés throughout Long Island. The main office can be reached at (516) 938-6152.
If you don’t want to visit a local Repair Café, the website: repaircafe.org/en/community/repair-guides/ has more than 60,000 video guides illustrating how to repair a particular item. With the convenient availability of actual and virtual repair capabilities at your beckon call, it’s easier to follow their motto: “Toss It? No way — Repair Cafe.”
A resident of Setauket, author John Turner is conservation chair of the Four Harbors Audubon Society, author of “Exploring the Other Island: A Seasonal Nature Guide to Long Island” and president of Alula Birding & Natural History Tours.
From time to time I’m asked a variation of the following question: What bird-nature-environmental books did I enjoy reading or am currently reading?This got me thinking — why not share the Nature Matters column to explore some of my favorite books on aspects of nature including a first article on birds. So beginning with this column focused on birds, future articles will focus on what I think are broader important and worthwhile books on nature and our relationship with it including numerous environmental struggles, the personalities involved in these struggles, and broader issues of planetary sustainability.
Tens of millions of Americans have an interest in birds, an interest that ranges frommild to downright intense. Many authors have catered to this, producing thousands of books on a wide variety of bird related topics — bird identification (a future column itself on guides), migration, feathers, coloration, adventures to see birds, how to be a better birder, bird song, bird flight, the history of ornithology and birding, and conservation issues, to name a few. Hundreds of more technical books on birds have been written on such topics as evolution, anatomy and physiology, and mating systems.
So the following are a few of the books on birds I recommend you consider cracking the covers of:
There are a number of books that are overviews of the avian world that should serve as the core of any bird library. Birds & People by Mark Cocker is an example. It is a tome,coming in at 591 pages, and as you might guess is exhaustive in its treatment — covering all of the world’s bird families with the author providing fascinating information about each bird group with an emphasis on human interactions, folklore, and cultural significance.
Another book that has a slightly different format but is richly informative is The Sibley Guide to Bird Life & Behavior (numerous authors). It, too, discusses the unique qualities of different bird families but before the family discussion has five chapters that delve into great detail about Flight, Form, and Function; Origins, Evolution, and Classification; Behavior; Habitats and Distributions; and Populations and Conservation. If I were able to recommend only one book for your nightstand to increase the breadth and depth of your knowledge about birds it would be this book.
Yet another book in this genre — a comprehensive overview of birds — is Kenn Kaufman’s Lives of North American Birds. Here the author focuses at the species level rather than the family, providing basic and important information about various aspects of specific birds’ life histories such as diets and habitats used.Also worth your consideration is the comprehensive species guide — Pete Dunne’s Essential Field Guide Companion.
Shore birds — sandpipers, plovers, and the like — are one of my favorite groups of birds and they have been the focus of a number of books. Two classics are Peter Matthiessen’s The Wind Birdsand Fred Bodsworth’s Last of the Curlews, a story about the sickening demise of the Eskimo Curlew, a bird once common on Long Island but now believed extinct due to the rapaciousness of uncontrolled sport and market hunting. Perhaps these books can be secured on eBay or at a used bookstore.
The World of the Shorebirds by Harry Thurston is another worthwhile addition to your bird library replete with stunning photographs of shorebirds and the wetland habitats they frequent.
More recently, the red knot, a plump robin-colored shorebird which has declined precipitously in abundance, has been the subject of a few books including Moonbird by Phillip Hoose, The Flight of the Red Knot by Brian Harrington, and The Narrow Edge by Deborah Cramer. The first book chronicles the life of a single red knot that has lived long enough during its annual migrations to have traveled the distance to the moon and halfway back, the second a straightforward overview of the species, and the last book exploring the relationship between red knots and horseshoe crabs, the eggs of which the bird depends upon on its northbound journeys in the Spring.
If bird intelligence is of interest to you The Genius of Birds by Jennifer Ackerman should be on your mandatory reading list. As the title suggests this book covers many fascinating aspects of bird intelligence and memory. Take, for example, the Clark’s Nutcracker, a western species, that can successfully find tens of thousands of seeds its cached scattered across several square miles, displaying memory prowess that put ours to shame.
The Bird Way is another book by Ackerman which probes the ways in which birds talk, work, think, and play. It contains one of the most startling things I’ve ever read about bird behavior: apparently some Australian raptors (e.g. hawks and eagles), knowing how it is easier to capture animals fleeing from a wildfire, are known to pick up smoldering sticks and drop them away from a fire in an effort to expand or start a fire!
Many books have been written about birds and their singing prowess. One of my favorites is Lang Elliot’s Music of the Birds: A Celebration of Bird Song. Besides containing many beautiful color photographs and highly informative text on the function of song, the difference between calls and songs, and how song has inspired humans for millennia, etc., the book comes with a CD filled with bird songs, calls, and the famous “dawn chorus.”
Three outstanding books on bird migration, definitely worth your time, are A Season on the Wind by Kenn Kaufman and A World on the Wing and Living on the Windby Scott Weidensaul. In these books the two authors document their experiences traveling around the world trying to better understand the fascinating movement of migratory birds. Songbird Journeys by Miyoko Chu is another enjoyable book on this topic.
If the global movement of birds excites you then Eye of the Albatross by Carl Safina is a most worthwhile read.An outstanding nature writer, Safina chronicles the travels and travails of Amelia, a wide-ranging albatross; besides learning about albatross migration and biology and aspects of the ocean environment, Amelia is a “window” for understanding the struggles all wildlife face on a planet being increasingly usurped by humans.
Two very different books by Bridget Stutchbury are worthy reads: Silence of the Songbirds and The Private Lives of Birds: A Scientist Reveals the Intricacies of Avian Social Life. The former discusses the threats facing birds in today’s wounded world while the latter focuses on how birds interact.
Back to Peter Matthiessen, we have his delightful overview of the world’s cranes in The Birds of Heaven. An added bonus are the beautiful paintings by Robert Bateman. The author travels around the world learning about this iconic and charismatic group of birds including the two species native to North America — Whooping and Sandhill Cranes.
Lastly, if you’d like to see a current, real world example of bird evolution happening before your very eyes I invite you to read The Beak of the Finch by Jonathan Weiner, for which the author won the 1995 Pulitzer Prize. In this fine book the author documents the extensive studies of Peter and Rosemary Grant, who have spent their lives documenting changes to the various finches (and their bills) that live in the Galapagos Islands located off the west coast of South America and made famous by Charles Darwin.
As Long Island turns away from summer and colder weather arrives, driving most of us indoors, why not explore the fascinating avian worlds presented in these books (and many others not covered here!) All you need is a glass of wine, a comfortable chair, and a curious mind.
A resident of Setauket, author John Turner is conservation chair of the Four Harbors Audubon Society, author of “Exploring the Other Island: A Seasonal Nature Guide to Long Island” and president of Alula Birding & Natural History Tours.
As described in the article on navigating the night sky in winter (Nature Matters/November 2021), which used the constellation of Orion as a starting point, it’s equally important to have a beginning point for learning the stars and constellations of the summer sky. The best object? Without a doubt it’s the Big Dipper, which, surprisingly, is not a constellation itself (being what’s known as an asterism) but part of a larger constellation of the Big Bear or Ursa Major.
Start by learning the outline of the seven conspicuous stars that comprise the Big Dipper (four make up the bowl and three the handle). Two of the stars of the bowl — the two furthest from the handle — form the “pointer stars” which lead to finding the North Star which is the base of the handle of the Little Dipper, also an asterism.
The North Star is in a straight line about five times the distance the pointer stars are apart. Knowing the North Star will always help you if you get lost! If you move back a bit toward the Big Dipper you’ll see the four stars that comprise the bowl of the Little Dipper, if it’s sufficiently dark.The brightest of these stars, Kochab, is also known as the “Guardian of the Pole”.
If you continue on a line through the North Star but bend it slightly to the right you’ll come to a distinctive constellation that is shaped like the letter “w” or “m” or “e” or number “3” depending on the time of night.(I stayed up late to watch the Perseid meteor shower in mid-August and watched over many hours as the constellation went from a “w” to the number 3 to the letter “m”).You’ve arrived at the constellation of Cassiopeia, the Queen.
If you have a very clear sky you’ll notice that the constellation is within a fuzzy band of countless stars that make up our very own Milky Way galaxy. Astronomers tell us that our solar system is situated about halfway out on one the galaxy’s spiral arms about 26,000 light years from its center.
Speaking of galaxies you can use Cassiopeia to locate another galaxy — the nearby Andromeda Galaxy. If you visualize the constellation being oriented like the letter “w,” locate the two lower stars of the letter. The lower star to the south or to the right is a little bit lower and fairly bright. This is the star Schedar. If you drop a line about the width of Cassiopeia and a little to the right you should see a fuzzy patch. If you do, congratulations! as you’re looking at the Andromeda Galaxy — the most distant point the unaided eye can see in the universe — about 2.5 million light years away. Said another way that’s about 5.8 trillion miles away multiplied by 2.5 million. If I did the math correctly that’s 12,936,000,000,000,000,000 or 1.29 x 10(15th power) miles away or 1.29 quadrillion miles. That’s a long trip on your bicycle, no?
Going the other way — arcing from the handle of the Big Dipper “arcs you to Arcturus,” the brightest star in the constellation of Bootes the Herdsman or Hunting Farmer.Whoever saw a herdsman from this pattern of stars in which Arcturus forms the right knee must have been imbibing a bit too much as I can’t begin to make out anything resembling a person. Arcturus is spectacular, a red giant — a senior citizen among stars — with a diameter about 25X as large as our sun’s.Arcturus is Greek for “keeper or follower of the bear”, a reference to its proximity to Ursa Major, which as mentioned contains the Big Dipper.
I think Bootes looks much more like a kite or especially an ice cream cone (who doesn’t think of ice cream on summer nights, right)? with a small dollop of ice cream on top. Why a small dollop? Because much of the ice cream has fallen off the left side of the cone in the form of a small half circle of stars known as the Northern Crown or Corona Borealis. Native Americans report this constellation reminded them of a camp circle.
And what constellation in the form of a strongman lies next to this fallen scoop of ice cream? Hercules, of course, made strong from eating so much of the tasty stuff.This constellation doesn’t have any especially bright stars but, by his left shoulder, lies the Great Cluster of Hercules, which appears in ideal conditions as a milky smudge, visible with binoculars. It consists of about 100,000 stars! The cluster was discovered in 1714 by Edmond Halley, of Halley’s Comet fame. It is a mere 25,000 light years away.
If you look to the side of Hercules away from the Corona Borealis you’ll see a very bright star — Vega, in the constellation of Lyra, the Harp. Vega is the brightest star in the summer sky and forms one of the three points of the other famous summer asterism — the Summer Triangle, which forms a pretty good rendition of an isosceles triangle. Deneb in Cygnus, the Swan and Altair, in Aquila the Eagle form this highly noticeable triangle.
Let’s close by looking south. If you are in a place where you can see pretty low in the southern horizon you should be able to see two constellations that resemble their names — Sagittarius, the Archer (also known as the Teapot) and Scorpius, the Scorpion. In Sagittarius the handle of the teapot is to the left and the spout to the right. The teapot is boiling over and the stream of steam in the form of a milky band you see emanating from the spout is our Milky Way galaxy. If you view this constellation as an archer, he is shooting to the right aiming at the Scorpion.
Speaking of the Scorpion, its stinging tail is near Sagittarius and its pincers further away.The brightest star, Antares, is quite visible and appears to have a reddish hue. Like the aforementioned Arcturus it is a red giant too, making it a senior citizen among stars, nearing the end of its life. It is estimated to be 300 times larger than our sun!
While the weather is warm and comfortable, get outside and become starry eyed! There’s so much to see and behold in the heavens over your head.
A resident of Setauket, author John Turner is conservation chair of the Four Harbors Audubon Society, author of “Exploring the Other Island: A Seasonal Nature Guide to Long Island” and president of Alula Birding & Natural History Tours.
A Column Promoting a More Earth-Friendly Lifestyle
By John L. Turner
John Turner
Make your next pet kitten an indoor one…
According to the American Bird Conservancy and other researchers, the number one cause for wild bird mortalityis by free ranging outdoor cats each year. Experts estimate that upwards of 2.5 billion (yes billion with a “b”!) wild birds are killed annually by cats including many species that frequent bird feeders such as cardinals, chickadees, and woodpeckers. Additionally, several billion small mammals— such as voles and mice— which form the base of natural food chains and webs, are also killed, reducing the availability of these animals for predators such as hawks and owls which depend upon them.
While it can be very difficult to turn a current outdoor pet cat into an indoor pet cat, this is not the case with a new pet that has no expectation or habit to go outside. Being an indoor cat has other obvious benefits to both the cat and cat owner — no worry about being hit by a car, getting into a fight with another cat or animal, or picking up a disease.
A significant majority of dog owners don’t let their dogs run free because of the havoc they can cause. If cat owners embrace the same belief and responsibility not only will their pet benefit but many types of wildlife will be much better protected, allowed to live out their wild lives free from the risk of pet cat predation.
A resident of Setauket, author John Turner is conservation chair of the Four Harbors Audubon Society, author of “Exploring the Other Island: A Seasonal Nature Guide to Long Island” and president of Alula Birding & Natural History Tours.
A Column Promoting a More Earth-Friendly Lifestyle
By John L. Turner
John Turner
If you’re one of the many thousands of Long Islanders who bring clothes to your local dry cleaning establishment, you know you get back those freshly-pressed and cleaned clothes on a wire hanger.
That’s good news in that there’s no need to throw away or attempt to recycle by tossing the hangers in your curbside recycling bin. Just bring them back to your dry cleaners to be used again…..and again…and again!
But many people don’t as approximately (and mind bogglingly) 3.5 billion wire hangersare thrown away every year in the United States! That amounts to 312,000 pounds of wire hangers or 156 tons.
Wire hangers can be used many times before they become sufficiently twisted or bent and can no longer be used and the dry cleaning establishment appreciates you returning them for reuse since you’ll be helping out their financial bottom line as they have to purchase fewer new hangers.
A resident of Setauket, author John Turner is conservation chair of the Four Harbors Audubon Society, author of “Exploring the Other Island: A Seasonal Nature Guide to Long Island” and president of Alula Birding & Natural History Tours.
Travis and I got our chairs positioned to be comfortable waiting for the show to begin. Facing west about a half hour after sunset on this July 4th evening, Venus dominated the sky shining brightly over a dark grey bank of clouds.
And then the show began, first a bright flash above us and to our left and then to our right and a third in the middle, higher still. And then several scattered across the sky in a triangle shape. A fireworks display to celebrate the holiday at a public park? Nope, a firefly display in our backyard!
Each night in early summer brings this show — free of charge — to a location near you, perhaps too in your backyard. It’s the annual mating flash of the firefly or as one prominent firefly expert calls it: “Silent love songs flashing their hearts out.” This yearly show is one of the joys of summer with so many childhoods having been enriched by children dashing to and fro temporarily capturing a few in a glass jar with some grass blades to watch the flashing fireflies up close. For us it’s fun to watch but for fireflies it involves the serious business of reproducing.
Firefly. Pixabay photo
I remember a firefly display I witnessed about a decade ago at the NYSDEC’s Oak Brush Plains Preserve at Edgewood (located in Deer Park). I was there in the dark to listen for whip-poor-wills, the population of which might represent the westernmost breeding group remaining on Long Island. I headed into the property and broke north along a trail bordering an open meadow.
In the meadow were many fireflies and I do want to stress many — what had to number in the hundreds winking and flashing in and along the edges of the meadows. Some flashed while perched on the top of tall grass. There were so many fireflies I was mesmerized and after a few minutes of watching thousands of flashes and blinks I found it almost disorienting.
Fireflies are also known as lightning bugs but to be accurate they are neither flies nor bugs. Rather, they are beetles belonging to the family Lampyridae. (This is one of the few insect family names I’ve remembered by playing a little trick: these insects produce their own light just as lamps do.) Currently 173 species have been documented in North America with the majority occurring in the eastern half of the continent.
Staff from the New York Natural Heritage Program (NYNHP) have been assessing the diversity and abundance of fireflies in New York. According to Katie Hietala-Henschell, a zoologist with the state program, “27 species occur in NY” but believes the numberwill very likely increase, as she notes “there could potentially be 37 species.”
She further states: “For Long Island in particular, there are at least 10 species (probably more!) that have been documented. However, this is a very conservative estimate and likely an underestimate of the number of Long Island species.”
The most common species both in the eastern United States and here is Photinus pyralis commonly known as Common Eastern Firefly or the Big Dipper Firefly, probably due to its flash pattern appearing reminiscent of the well-known star pattern.
As for rare firefly species that may occur on Long Island, Katie indicates “The only documented IUCN Red List species that has occurred on Long Island is Photuris pensylvanica (Dot-dash Firefly) ranked as Vulnerable. … I suspect at least two other IUCN species that may occur on Long Island. It could be a long shot, but there is potential for Pyractomena ecostata (Keel-necked Firefly) ranked as Endangered and possibly Photuris bethaniensis (Bethany Beach Firefly) ranked as Critically Endangered by IUCN and petitioned to be federally listed as Endangered.”
As I soon learned the dot-dash firefly is aptly named as its flash pattern consists of a short greenish colored flash (the dot) followed by a longer flash that lasts several seconds (the dash).
We have a pretty clear understanding of the underlying but complicated chemistry producing the magical flash in fireflies. Using organs in their abdomens, oxygen mixes with calcium, a chemical named luciferin, an enzyme — luciferase, and ATP (adenosine phosphate; remember this from the cellular biology you learned in high school?). Oxygen, the release of which fireflies can control, appears to be the “switch” that sets off the process. Nitric oxide gas also plays a role. This illumination is extremely efficient with the firefly giving off very little heat while emitting lots of bright light.
Their flash is an excellent example of bioluminescence — light made by living things. Bioluminescence is known across the living world — besides fireflies, a number of jellyfish, worms, squid (to be precise it’s the luminescent ink they shoot out to avoid predation), many fish species including deep-sea fish, algae, and fungi produce and emit light.There are approximately 1,500 species of fish alone that are bioluminescent!
In the category “the world is always more complicated than we think,” most female fireflies can’t fly since they lack wings or possess only vestigial wings, rendering them earthbound from where they flash (we know them as glowworms); the males of a few firefly species also cannot fly; and not all fireflies use flashing light to attract, with some employing scent attractants known as pheromones — species-specific chemicals that attract the opposite sex.And not all flashing is designed to entice mating. In some cases female fireflies mimic the male flash of other species to entice them so the females can dine on their bodies and incorporate the poisons contained within.A firefly femme fatale, if you will.
Fireflies, like so many insect species, are declining. Habitat loss and pesticide use are culprits. But perhaps the number one problem facing this iconic group of insects is excessive night lighting.As more homes are built and more of us leave front and backporch lights on, more ambient light is created, creating confusion for and competition to the flashing fireflies.This brightening glow of night lighting disorients migrating birds, dims the stars and the Milky Way, and, now, is having an adverse effect upon fireflies.
If you want to know what you can do to protect fireflies: Turn off outdoor lights as the lighting competes with the flashes of fireflies. Additionally, avoid using pesticides or chemical fertilizers and leave the leaves for the benefit of female fireflies and some firefly larvae which are found on the ground.
Here’s to hoping that fireflies make summertime memories for jar-carrying kids and their parents for countless summers to come.
A resident of Setauket, author John Turner is conservation chair of the Four Harbors Audubon Society, author of “Exploring the Other Island: A Seasonal Nature Guide to Long Island” and president of Alula Birding & Natural History Tours.
Several bird species use the shed skin of a snake during nest building to scare off predators, including the Carolina Wren as seen above. Photo by John Turner
By John L. Turner
John Turner
On one of many strolls to the compost bin this Spring, I walked past a tall Norway spruce and noticed the head of a Mourning Dove jutting above a few head-high horizontal branches. Suspecting it was an incubating bird on a nest, I didn’t disturb her, giving her and the long horizontal branch wide berth. Later in the day when the nest was temporarily unattended I moved in for a closer look.
Two eggs sat together in a shallow bowl made of small branches, in a splayed out pattern reminding me a little of the pattern that happens during a game of pick-up sticks. This was not a tightly woven nest and even with the spruce branches supporting it I could see small holes through the nest and branches to the ground below.I wondered if eggs or young ever fall through the doves’ nest although I suspect they don’t.
Mourning Dove nests are known to be loosely constructed in which you typically see through the floor, a trait that makes them distinctive. Some other bird nests also are distinctive to species, the pendulous, highly interwoven nest of a Baltimore Oriole being an excellent example. Their nests, hanging from the end of maple branches, often become apparent after leaf fall in the autumn. Another distinctive nest is that of the American Robin, always containing mud in the outer shell that helps to keep the cup rigid and firm.
Not surprisingly, many birds try to conceal their nests or make them less visible. The Ruby-throated Hummingbird, for example, embellishes the outer sides of its tiny nest with lichens, making it appear to be little more than a lichen-encrusted bump on a branch. Ground nesting birds like Eastern Meadowlarks have nests with an entrance hole on the side making the nest invisible from above. The same is true for the Ovenbird, a warbler species which is a common nester in woodlands throughout Long Island and especially the Pine Barrens. Its ground nest also has an entrance from the side and looks like an old fashion dutch oven, hence the bird’s name.
Bird nests come in many shapes and sizes, constructed with many materials, in many different physical locations, and are a perfect blend of form and function. The purpose is, of course, to provide a place where the eggs, hatchlings, and nestlings can be more safely protected and for many species to successfully complete their development. (Precocious young such as piping plover chicks leave the nest at birth never to return).
Remarkably, a few birds like the Fairy Tern of the South Pacific make no nest at all; this species lays its one egg in a dimple or depression on a thicker branch. Somehow through the rigors of incubation and hatching the egg and chick defy gravity and stay safe. Closer to home we have the “nests” of Whip-poor-wills and Chuck-will’s-widows which are nothing more than leaves on the ground upon which the adult lays her two lightly splotched eggs.
Piping Plovers do a little more in nest construction by hollowing out a small depression with the male adorning the nest with white shell fragments. The nests of terns are similar, being nothing more than a shallow depression in the sand — simple but effective.
The use of earthen burrows — horizontally oriented tunnels of varying lengths with an entrance hole excavated in a vertical surface — is another nesting strategy employed by some birds. On Long Island there are three burrow-nesting birds — the Belted Kingfisher and two swallow species — Bank and Northern Rough-winged. They excavate the tunnel (sloping it slightly upward to keep the rain out) which can be as long as five feet ending in a slightly enlarged chamber where the eggs are incubated. All are dug into a vertical face such as a steep slope, road or railroad cut,bank of a sandpit or in a bluff face. The bluffs along Long Island’s north shore are often used, especially by Bank Swallows. If you walk along a north shore beach flanked by a bluff you might see many small nest holes in the bluff, with handsome brown and white birds with a distinct upper chest band zooming about — you’ve entered a Bank Swallow colony.
Cavities comprise another important nesting strategy employed by birds. Usually the result of work by woodpeckers such as Red-bellied, Hairy, and Downy Woodpeckers, (but not always as I once watched a pair of Black-capped Chickadees excavate a nesting cavity in a rotted grey birch stump), these created cavities are vital to the many bird species that utilize or require cavities in which to nest. These species include the familiar aforementioned Black-capped Chickadee, Tufted Titmice, White-breasted Nuthatch, Great-crested Flycatcher and Screech Owl, not to mention many woodpecker species and numerous insect and mammal species too.
The overwhelming number of birds including most songbirds make nests having two to three distinct layers — coarser sticks in the outer frame, finer twigs and roots in the inner cup, which is lined with soft material such as moss, animal hair, and feathers. This provides necessary rigor while providing a softer surface for the eggs and young.
Birds put some quirky stuff in their nests. Ospreys are notorious for placing all manner of junk in their large nests — pack rats with wings!According to Alan Poole’s fine book “Ospreys: The Revival of a Global Raptor,” materials found in this species’ nests include pieces of fishing nets, plastic buoys, six-pack holders, party balloons and their dangerous ribbons; basically nest materials “can be a bizarre reflection of what is available in the local landscape.” Carolina Wrens and Great Crested Flycatchers are known to reliably include a strange material in their nests — pieces of or entire snakeskins. Speaking of Carolina Wrens, they’re known to nest in some pretty weird spots such as old shoes, flower pots, and pails.
As expected, larger birds make larger nests. The Bald Eagle has perhaps the most impressive nest of any North American bird species; some are large enough for a small child to nestle in the bowl of the stick-constructed nest. According to reports they canweigh nearly a ton (I remember seeing one such massive nest in coastal Maryland several decades ago). Not surprisingly, their nests are typically constructedin large trees with thick branches that can support the weight of the nest. Osprey nests are smaller but still can be impressive affairs, composed of interlocking sticks that stand up to the buffeting winds of the coast.
A few birds, the Great Horned Owl being a classic example, rarely make their own nest, rather using the nest site of a previous occupant such as another bird of prey or crow.
Almost as diverse as the birds themselves, the nests birds construct illustrate many different designs and a wide variety of forms — all variations to achieve the same purpose — a place where bird eggs and babies can be protected at a most vulnerable time in their lives.There’s avian architecture on display all around us!
A resident of Setauket, author John Turner is conservation chair of the Four Harbors Audubon Society, author of “Exploring the Other Island: A Seasonal Nature Guide to Long Island” and president of Alula Birding & Natural History Tours.
When you read the label look for words such as bird friendly, fair trade, certified organic, etc.
A Column Promoting a More Earth-Friendly Lifestyle
By John L. Turner
John Turner
If you watch birds you’ve undoubtedly enjoyed watching them in the early morning while having a cup of coffee. Want to enjoy the latter while better helping the species you enjoy viewing? Drink shade-grown coffee.
As the name suggests, shade-grown coffee is composed of coffee shrubs and trees grown in the understory of a shady tropical rainforest in which the ecosystem remains largely intact. Unfortunately most coffee consumed by Americans are sun-grown varieties where the rainforest is destroyed and manicured rows of coffee plants grow. Sun grown coffee farms have many fewer wildlife species, such as the birds we love — Baltimore Orioles, Scarlet Tanagers, and Rose-breasted Grosbeaks to name but a few; in some cases sun-grown coffee farms have 5% of the species found in shade grown farms.
Shade grown coffee brands are available in some stores and certainly on-line. They are abit more expensive but if more consumers buy coffee sustainably grown, prices should come down. And you will gain something more than you ever could by consuming a cheaper cup of sun-grown coffee — knowing you’re helping migratory birds that visit us during the Spring and Summer survive.
A resident of Setauket, John Turner is conservation chair of the Four Harbors Audubon Society, author of “Exploring the Other Island: A Seasonal Nature Guide to Long Island” and president of Alula Birding & Natural History Tours.
A Froglog can save countless animals from drowning.
A Column Promoting a More Earth-friendly Lifestyle
By John L. Turner
John Turner
Countless numbers of wild animals, from chipmunks and mice to raccoons and skunks drown in in-ground pools every year unable to climb out of the water along the pool edge. (Two chipmunks unfortunately drowned in my pool last year the first day I uncovered the pool and before I had placed several water exiting devices I had in the shed). Smaller reptiles and amphibians drown too.
There are products you can buy to minimize the chance of wildlife drowning in your pool. They are installed or placed on the edge of the pool and serve as a ramp to allow for animals to climb out. Two products come to mind: 1) Skamper-ramp, for larger animals such as mammals (and your pets!) and 2) Froglogs, effective for smaller animals. Even knotted nylon rope hanging into the water can help smaller mammals escape. Four to six Froglogs or rope are recommended for the average size pool (I placed eight of these to be extra safe).
With these devices in place you can have greater piece of mind knowing your pool is only a place for fun and relaxation!
A resident of Setauket, John Turner is conservation chair of the Four Harbors Audubon Society, author of “Exploring the Other Island: A Seasonal Nature Guide to Long Island” and president of Alula Birding & Natural History Tours.