One of the best studies of a North American bird ever written was published by a citizen-scientist named Margaret Morse Nice. Margaret Nice banded more than 800 Song Sparrows in a 40-acre tract in Ohio. Most of us have neither the time nor the 40 acres, but there is still much we can do…

The familiar components of a hummingbird feeder include a bottle, sugar water, and something red to attract the birds. (But not the water, please! Food coloring can be harmful to hummers. Here's a healthy recipe.) Feeding hummingbirds such as this Anna’s Hummingbird may seem like a recent…

You can find European Starlings in huge flocks from coast to coast, and from Northern Canada deep into Mexico. Yet not one of these iridescent-black, yellow-billed starlings is native to the Americas. One hundred starlings were released in Central Park in New York City in 1890. From that…

When small family farms gave way to large, industrial agricultural operations, the Snow Geese followed. Waste grain left over from harvests has allowed Snow Goose populations to jump. Now, there are so many Snow Geese they degrade their Arctic summer habitat, threatening other birds. Is…

Project FeederWatch, sponsored by the Cornell Lab of Ornithology and National Audubon, is a window on the birds of winter. Through Project FeederWatch, scientists are able to track the movements of birds - including this Pine Siskin - and understand trends in population and distribution…

High in the mountains, a Clark's Nutcracker buries a cache of whitebark pine seeds. This will be nearly its sole source of food until the next summer. But some of those cached seeds will germinate, spawning a small grove of pines. Whitebark pines are one of more than 20 species of pines…

Generations of birders have puzzled over how to tell Downy Woodpeckers from Hairy Woodpeckers. The two species’ patterns of black and white feathers are so alike that it was long thought they were the closest of relatives. The two live in similar woods, nest in similar trees, and eat many…

Words help us identify birds by vocalizations. Like the towhee's "Drink your tea,” or the Great Horned Owl’s “Who’s awake? Me, too…” Then there are the sweet, clear whistles of the Golden-crowned Sparrow. In the late 1890s, the gold prospectors of the Yukon may have imagined they were…

What bird can fly straight up and down, backward and forward, and even upside down? A hummingbird can do all this -- and fly up to 75 miles an hour. And most amazing of all? This bird can slow from 25 miles an hour to a dead stop in a space no longer than your index finger! Learn more…

Gordon Hempton has spent his life capturing the sounds of the natural world — and learning to really listen to the world around him. He says over the course of our lives we apply more and more filters that dictate what is and isn’t worth our attention. That can help us navigate the human…