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Kinglets in Winter
The Golden-crowned Kinglet weighs six grams, about the same as two pennies, yet winters as far north as Alaska and Nova Scotia. The birds move throug…
2 years, 5 months ago
Frigatebirds' Kleptoparasitism
In the warmer regions of the world’s oceans, large seabirds called boobies plunge headfirst into the water, snatching up fish. But as a booby flies u…
2 years, 5 months ago
The Secret Stash of Eggshells
Developing eggshells requires a key ingredient — calcium — in larger quantities than the female typically has in her bloodstream. Just how different …
2 years, 5 months ago
Day Scott on Recovering with Help from Birds
Day Scott’s interest in birds grew following a car accident that resulted in a traumatic brain injury. As she recovered, she would sit in the kitchen…
2 years, 5 months ago
A Hummingbird Hospital in a Mexico City Apartment
Catia Lattouf cares for dozens of hummingbirds from her home!In Mexico City, 73-year-old Catia Lattouf started a hummingbird hospital — in her apartm…
2 years, 5 months ago
Winter Romance - Common Goldeneyes
Most duck species court and form pair bonds in winter. In the icy waters of Vermont’s Lake Champlain, Common Goldeneyes are getting hot! This male is…
2 years, 5 months ago
Ptarmigan in Winter
Both the Willow Ptarmigan and these White-tailed Ptarmigan, feathered mostly brown in summer, are utterly transfigured by an autumn molt. As snow beg…
2 years, 5 months ago
Dove or Pigeon?
The word “dove” might make you think of an elegant bird symbolizing peace, while the word “pigeon” might bring up images of rowdy flocks of city bird…
2 years, 5 months ago
Treeswifts: Exquisite Minimalists
The treeswifts of India, Southeast Asia, New Guinea, and beyond make their nests out of bits of plants and feathers and hold it all together with som…
2 years, 5 months ago
Pinpointing a Bird in a Forest by Ear
Juan Pablo Culasso is a nature recordist based in Colombia. Here, he describes how he uses a parabolic microphone to record a singing bird. Juan Pabl…
2 years, 5 months ago