A Season For Nesting

Great Blue Heron, Ardea herodias

 

“For everything there is a season, and a time for every purpose under heaven”, Ecclesiastes 3:1.  The earth has just passed through the solstice and the seasons have changed yet again.  We have that 23 degree tilt to thank for this welcome variety in our lives.  For the birds the spring migration is over and some of the Arctic nesters are already beginning to feel the urge to head south.  But around here in Chesapeake country, nesting and all its attendant chores is in full swing.

House Wren, Troglodytes aedon

The first task is to choose a suitable site, one pleasing to her, for even in the avian world the female needs to be satisfied.  “Mr. and Mrs. Mallard were looking for a place to live.  But every time Mr. Mallard saw what looked like a nice place, Mrs. Mallard said it was no good.  There was sure to be foxes in the woods or turtles in the water, and she was not going to raise a family where there might be foxes or turtles.  So they flew on and on.”

Mallards, Anas platyrhynchos

That’s the first paragraph of Robert McCloskey’s 1941 classic, “Make Way For Ducklings” and is a favorite of our family.  Mrs. Mallard’s final choice in the middle of urban Boston’s Public Garden makes me question her judgement somewhat, but as the story goes, she did receive welcomed police protection.

Juvenile Bald Eagle, Haliaeetus leucocephalus

This spring I’ve noticed a significant decrease in the Tree Swallow population, leaving the yard’s birdhouses to the Eastern Bluebirds which have had a banner year.  But even their lives are not without controversy.  “Of all the houses, in all the yards, in all the world, this is the one you chose?”  The male bluebird can just hang is head in shame and vow to do better next year.

Eastern Bluebirds, Sialia sialis

I marvel at the variety of nesting strategies.  Some try to hide the nest from predators and the elements, deep in the leafy shrubs, while others nest in plain sight, oblivious to the risks.  The former nests only become apparent in the leafless winter when I’m surprised to see the vacated refuge, often near the front door.

Yellow Warbler, Dendroica petechia

The Killdeer, however, just scrapes a few stones together in the wide open driveway and hopes that I’ll avoid it with the truck, or that he’ll successfully fool me and lead me away with that phony injured wing routine.  Inexplicably the ancient Diamondback Terrapin follows the Killdeer’s lead as she crawls out of the muddy cove, lumbers across the lawn, and digs her nest right in the middle of the driveway.  This is just too easy pickings for the Raccoon and Black Snake who have a great appetite for the leathery turtle eggs, but who am I to argue with eons of evolutionary success.

Anhinga, Anhinga anhinga

The breadth of nesting materials is great, ranging from stones to the soft down lining the nests of passerines.  Larger birds use coarser sticks, more structurally suited to their weight and their exposed sites.  But the Osprey couple often don’t agree on the suitability of every stick.  I’ve observed the triumphant male, with great effort, fly in with a beauty, to my eye the perfect stick, and proudly present it to his mate for placement in the growing nest.  As soon as he flies away to find another she kicks it into the river, probably muttering something unkind under her breath.

Osprey, Pandion haliaetus

Since large nests are difficult to hide, the waders seek safety in numbers, nesting in large, noisy rookeries, often on a island populated by diverse species.  The Venice rookery in Florida, a favorite destination for me and many bird photographers, is a great example.  But one can never completely protect the nest.  J.J. Audubon has wonderfully captured the drama of a rattle snake attack on the Mockingbird nest as these birds valiantly rise to the defense of their young.  There will always be risks.

Mimus polyglottos by J. J. Audubon

Cavity nesters have more choices than ever before.  Bird lovers have made up for the disappearance of natural cavities by building birdhouses galore.  I’ve constructed many of the standard wood variety, but have recently tried a more durable version made from PVC pipe.  It is stark white and suffered a few years of vacancy before its contemporary style was finally accepted.  The Purple Martins, on the other hand, seem to have no problem with the crowded, multi-family, modern look.  To each his own.

Eastern Bluebird, Sialis sialis

Purple Martins, Progne subis

There’s also great variety in the chosen structure of the nest.  Many seem too precarious to be practical.  I refer to the Osprey again, attempting to build on the point of channel marker 2SD, right off our dock.  I suspect this is a juvenile bird, still learning the ropes.

Osprey, Pandion haliaetus

The least appealing in terms of materials, view, etc., are the nests of the Barn Swallows, plastered to the underside of a dock or the ceiling of a dingy porch or barn.  They seem perfectly content with their residential design, however, and who are we to judge.

Barn Swallow, Hirundo rustica

Don’t forget the swinging sacs carefully constructed by the Baltimore Oriole, but the world’s record for the sac design has to be the Baya Weaver’s amazing creation which we saw hanging in India several years ago.

Baya Weaver, Ploceus philippinus

I hate to bring them up again, but must remind you of the dastardly Cuckoos and and Cowbirds that just avoid the entire drudgery of nesting by their successful brood parasitism.  I just hope it doesn’t catch on.

Pileated Woodpecker, Dryocopus pileatus

Is the season of nesting initiated by temperature, hours of daylight, hormones, or some other deep rooted instinct that passes down through the generations?  Nesting is clearly not limited to the Aves.  The American Pregnancy Association clearly recognizes the nesting urge in Homo sapiens, usually, but not always, occurring in late pregnancy.  They have published guidelines to help expectant mothers channel their energy toward making their nests perfect for the new arrivals.

Brown-headed Nuthatches, Sitta pusilla

This nesting season, as they all do, will pass too quickly.  The fawns are already losing their spots and wandering independently.  The fledgling geese, although diminished in number by the Red Fox, are almost full grown.  The Bluebirds and Brown-headed Nuthatches are still busy feeding their chicks, but this also will end soon.  Their nests, like ours, will be empty.  For everything there is a season.

Trash Birds

Herring Gull, Larus argentatus

 

These are the birds no one loves.  They’re numerous, obnoxious, and ubiquitous.  We often do not even tick them off on our eBird lists; why bother?  Most do not migrate; we’re stuck with them all year long.  Monthly the National Audubon Society scares us with a growing list of near-extinctions, but these birds never make the list.  Despite our efforts to pollute and destroy habitats, these birds thrive.

House Sparrow, Passer domesticus

But, “one man’s trash is another man’s treasure”.  If you don’t believe this just watch a couple episodes of the Antique Roadshow on PBS.  A little research can reveal beauty, wonder, and maybe even some monetary reward in even the most unlikely of candidates.  With this in mind this post tries to uncover a few redeeming qualities in my list of trash birds, at least in the beauty and wonder departments.

Eurasian Tree Sparrow, Passer montanus

Take the House Sparrow, please.  Previously known as the English Sparrow, it was introduced to New York in 1851, and we are still wondering why.  This aggressive Old World sparrow is a native of Eurasia and northern Africa and has enjoyed phenomenal success in North America.  The lookalike cousin across the pond is the Eurasian Tree Sparrow.  Its strategy has been to seek out urban centers, crowded sidewalk cafes, and virtually any man-made structure.  You can’t say the male is ugly with its gray head, black beard, and brown and white highlights.  The female is just another difficult to identify LBJ, (little brown job).

Rock Dove, Columba livia

Speaking of urban-loving birds transplanted to us from Europe, Africa, and India, you can count the feral Pigeon.  In more polite circles they are known as Rock Doves.  We are partly to blame for their success, domesticating them for their homing tendencies.  As we all know they have taken over our park benches, school yards, and sky scraper ledges.  A few have attempted to return to their rural roots, nesting on coastal cliffs and mountainsides, but the vast majority still cling to us humans and our cities.  Their redeeming feature is the great variety of iridescent feathers and that striking red eye.

Boat-tailed Grackle, Quiscalus major

Next there are the Grackles.  Just the name reminds one of their irritating call that mimics a rusty gate desperately in need of oil.  They often travel in wolf-like packs, swarming the feeder and driving off the shier passerines.  They have single handedly caused me to shut down the feeders in the warm weather.  One can only afford so many bags of sunflower seeds on a fixed retirement income.  You have to look closely to reveal their beauty, also found in the iridescent plumage and piercing golden eye of the male Common Grackle.  The less common cousins, the Boat-tailed and Great-tailed, share similar assets and  liabilities.

Ring-billed Gulls, Larus delawarensis

Sea Gulls have lost the “sea” in their name and have moved inland following our human trash, dumps, waste water treatment plants, and McDonalds parking lots.  For a birder to become an expert observer of this confusing family of lookalikes, he or she must become gullible.  They’ll take you to some of the most acrid and non-picturesque places on the planet and your reward will be a squabbling colony of black, white, and shades of gray.  You’ll have to hope for the chills and thrills of finding a rarity amidst that flock of a thousand scavengers.

European Starling, Sturnus vulgaris

We could drop the “European” from the name of our only Starling in North America, but keep it as a reminder of where this “gift” came from in 1890.  It has taken over the continent with vast flocks forming in the fall and winter.  It crowds out other birds in both the urban centers and rural farmlands, competing with other more welcome cavity nesters.  They are persistent.  I’ve now removed their nest from my boat-lift motor six times this spring, the last time despite a new protective screen.  They pecked right through it.  On a sunny day, when I’m feeling upbeat, I can appreciate the metallic hues given off by their feathers, decorated with a sprinkle of dots.  The yellow bill of the summertime male adds a nice contrast.  I’m trying to be kind.

Brown-headed Cowbird, Molothrus ater

Remember the phrase, “a face only a mother could love”?  The maternal Brown-headed Cowbird must have forgotten it.  She just clandestinely deposits her eggs in another innocent passerine’s nest and moves on, without even gazing upon the face of her offspring.  These brood parasites have developed a successful policy of avoiding the hard work of parenthood.  You have to admire their audacity or perhaps find some pleasure in their contrasting brown and black coloration, but its hard to find anything good to say about them.

American Crow, Corvus brachyrhynchos

We’re frequently told that Crows are among the smartest of all birds, but intelligence is no excuse and protector from being on my trash list.  There is a reason that a flock of these birds is called a “murder” of crows.  When’s the last time you saw a crow sitting innocently on a wire, just enjoying life.  They’re always chasing or being chased, raising a raucous, or attacking a poor songbird.  Perhaps you can admire their energy, but they are a constant reminder that intelligence does not always breed contentment.

Herring Gull, Larus argentatus

So there you have it, my list of trash birds.  I suspect this post will find disfavor among my birding friends who find beauty in all the creation.  On a good day I am among their ranks, but lately my tolerance level has been tested.  Here’s to better days ahead.