By late summer, the male Mallard’s need for fancy feathers to attract the females has passed. These birds have molted, and their bright feathers are replaced with mottled brown ones. Subdued colors help camouflage the male ducks, protecting them from predators. Come fall, the male Mallards…

Brooklyn’s Prospect Park covers more than 500 acres — many of them covered in trees. One bird species that calls the park home is the strikingly beautiful Blue Jay, which nests, forages, and roosts in trees. In the eastern U.S., you can invite Blue Jays into a small yard with just a decent…

At the close of a summer day, the songbirds go silent. As if on cue, the birds of the night make their voices known. In an Eastern woodland, the eerie trills and whinnies of an Eastern Screech-Owl are among the first sounds of the night. Meanwhile, as night falls west of the Rockies, a…

By August, many birds have just completed the intense rigors of nesting and raising young and now undergo a complete molt. Molt is a cyclic process of feather growth. As new feathers grow in, they push the old ones out. Why molt? Because feathers wear out. Songbirds that migrate long…

Bird nests can be hard to find, often hidden in plain sight. Is the clever camouflage simply the result of using building materials that the birds happen to find? A Scottish research team used birds popular in the pet trade, Zebra Finches, to try and find out. The team gave nesting Zebra…

The Northern Bobwhite — many call it just the Bobwhite — has an unmistakable call, which is also the source of its name. The species is native to the US, east of the Rockies. But Northern Bobwhites have been released into the wild as game birds in many locales in the West.

Some swifts and frigatebirds stay aloft for months. But for a long time, scientists did not know if the birds might be sleeping on the wing. A 2016 study provided answers. Tiny devices attached to the heads of frigatebirds revealed fascinating information: the birds did sleep while aloft…

Insects sustain our ecosystems, as a food source and pollinators of 90% of all plants. But their numbers have dropped by half in the last 50 years, so it is now critical to help foster insects. One concrete way to help is to grow native plants that provide food and shelter for insects like…

When it’s predictable and wildlife is well adapted, natural flooding can create a biological bonanza. In the Amazon River Basin, which holds one-fifth of the world’s fresh water, annual rains can raise water levels 30 to 40 feet in just days. Forests turn into vast lakes, dotted with trees…

The song Tico-Tico no Fuba, like Carmen Miranda, came to us from Brazil. Believe it or not, the song is about a bird. The Portuguese lyrics tell the story of the tico-tico, a local name for the Rufous-collared Sparrow. Like so many birds, tico-tico was named for its song. In the song, the…