Saturday, August 18, 2012

Birds must battle elements of nature

As featured Aug. 11, 2012, at www.cnjonline.com

Air conditioners work overtime, flowers wilt in an effort to escape the sun and lemonade and ice tea flow — it’s hot.
Humans actually have it pretty easy, able to duck indoors when the temperatures get to be too much. In fact, pretty much any ambulatory creature can find ways to dodge the scorching air, even if it’s just a matter of finding a shady spot to nap until the sun goes down.
But things are a little different for those unfortunate enough to hatch during the peak of summer. Sure, the heat is great for incubation, not so good for the squawkers.
The eggs in the front porch nest hatched, right about the time the temperatures started to spike and in a few short days, it became a thermometer of sorts.
It can be less than obvious sometimes by their loud protests and seemingly threatening swooping, but for more than 2,000 years, barn swallows have increased their odds of survival by nesting where humans are — taking a page straight out of the original strategy manual by living near a creature that tends to drive other predators away.
However it’s not a perfect strategy, as humans may keep larger birds and other animals away but they only tend to climate control the insides of their homes.
Were it earlier in the season, the nest would have been in the perfect place, tucked under the edge of a wall that receives sun all day long, but in the hottest part of summer, the perfect nest became an oven.
In the cool of the mornings, with the exception of a flurry of chirping when mom or dad would fly by and drop crushed bugs into waiting mouths, the mud sconce-like nest was silent and appeared empty, the babies huddled together at its center.
But by mid-morning, the beaks began to appear at the edges and from noon until evening, four mostly-bald heads spiked with fuzz were hanging wilted over the sides — their eyes closed, beaks open and panting for air.
Squirming and shifting uncomfortably, they would occasionally jockey against one another in an attempt to get closer to the edge and hopefully a breeze, but for the most part, they just hung over the sides of the nest, looking half dead.
With all their effort to escape the misery of the nest, it wasn’t really a surprise to find one little one hunkered down on the porch where its squirming obviously culminated in an emergency landing.
How it survived the plunge was a mystery, since its eyes were still closed and its feathers more like fur than anything useful to a bird, but alive it was.
With the aid of a step-stool, the baby was deposited back in the nest and within a few minutes, the relieved parents were again happily dropping crushed bugs into waiting mouths.
The little one simply foreshadowed things to come and by morning, three had bailed out of the proverbial frying pan and into the fire, only they weren’t so lucky.
Had they not spent every day inching so perilously close to the edge of the nest, I might have thought they were pushed, but there was little doubt they had fallen in their blind search for cool air.
As the heat of the day returned, a single little head moved over the side of the nest and began to droop, mouth gaping — there was a survivor.
By evening, a new milestone was reached and the little one managed to perch on the side of the nest, seeming remarkably more agile and balanced.
However, as the noon sun began to bake the porch the following day, there was still no little head hanging over the side, and instead, I found the little one unmoving in the hot center of the nest.
Five young swallows flew out of the same nest the year before and not a one of them crawled to the edge and fell, so the only possible answer was somehow this group knew something different, even if frying pan or fire ended up not being much of a choice at all.

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