Urban Bird Feeders Are Changing the Course of Evolution
More than 50 million Americans are conducting an unwitting experiment on a vast scale.
'To my knowledge, no one has ever been killed by a plummeting bird feeder. Still, when you live on the 25th floor of a Manhattan high-rise, you can’t hang one outside the window and risk knocking off a pedestrian below.
Several winters ago, I sat at my desk lamenting this fact while gazing across the gray expanse of chimneys and water towers stretching to the East River and beyond. I was holed up in my apartment working on a book about a fish: the storied Asian arowana, a swamp-dwelling endangered species rumored to fetch up to $300,000 as a pet. After chasing the creature around the globe for more than three years, I was now confined indoors, buried in drifts of notes. Each time I attempted to force my thoughts underwater, I found myself staring out the window, longing to see birds in the city sky.
Having sworn off swamps, I missed a connection to the wild. Seeking a remedy, I discovered a small Maine company called Coveside Conservation Products, which makes a unique “Panoramic in-House Window Bird Feeder.” A semicircular mahogany platform enclosed with plexiglass, the feeder fits into an open window and juts inward, providing a front-row view of birds bold enough to enter. No part of the contraption dangles outside, presumably rendering it safe for urban use.
In reply to my enthusiastic query, however, Coveside’s owner, Jim Turpin, was less than a salesman. “Frankly, I’m not overly optimistic about attracting birds to feed in a high-rise setting,” he wrote, explaining that most species search for food at specific heights. He pointed me to the website of the Cornell Lab of Ornithology, where someone had inquired about luring birds to a 17th-floor balcony. The answer—that attractive foliage can help, but don’t hold your breath—wasn’t promising, considering I don’t have a balcony and scarcely overlook a tree.
Nevertheless, I ordered the feeder,'>>>
https://www.theatlantic.com/science/archive/2018/01/urban-birds-are-evolving-to-be-fed/551120/
