Some ducks don't sound like ducks at all. Some — like the Harlequin — squeak. Harlequins are unique in other ways, too. Quick and agile in rushing white water, they dive to the bottom of mountain streams for food, and use fast-flowing rivers for breeding. If you're lucky enough to spot a…

The word “loon” comes from the Old Norse word for “lame.” Because their feet are so far back on their bodies, loons cannot walk on land. But in flight, they’re graceful, and under water, they're swift in pursuit of fish. Red-throated Loons – like this one – breed in the far north and…

Why do birds consistently follow certain routes in their migrations? Pathways of migration evolved, shaped by the wind. During the height of the last ice age, ice-free breeding habitat for songbirds remained in what is now Alaska and parts of Western Canada. Studies of fossil pollen show…

Sailor and artist, Brechin Morgan, circumnavigated the globe solo. Alone on the vast expanse of the Pacific Ocean, he welcomed the companionship of a Swallow-tailed Gull, flying off of the bow stay in front of the boat, like a little shadow of moonlight floating back and forth, almost all…

Male Bobolinks are first to arrive on their breeding grounds in the grasslands. Why are there fewer Bobolinks than in decades past? Probably because the landscape of North America has changed so much. Bobolinks originally nested on native prairies of the Midwest and southern Canada. Much…

On a still winter afternoon, you may hear Common Goldeneyes flying low across the water. Whistlers, their wings sibilant, make the sound – as Ernest Hemingway wrote – of ripping silk. Common Goldeneyes nest in cavities, in northern boreal forests.

When courting in spring, male and female Cedar Waxwings communicate with distinctly different calls and, perched side by side, often pass back and forth between them a berry or other small fruit or even a flower petal. Waxwings display a wealth of eye-catching plumage. If you relish the…

Es más importante que nunca mapear los viajes de las aves para saber cuándo toman vuelo, cuándo paran a descansar, y qué necesitan para alimentarse y resguardarse a lo largo del camino. Nuevas herramientas como radares meteorológicos, la colaboración masiva y los geolocalizadores nos…

Although some of the Turkey Vulture's habits may evoke our disgust, these remarkable birds also inspire our awe. With wingspans approaching six feet, Turkey Vultures ride currents of air to make their spring and fall journeys, and to cover the miles of their home range in summer. Gliding…

For 20,000 years, spring rains and melting snow have filled the playas of the Rainwater Basin of south-central Nebraska. As winter ends, 10 million waterfowl rest and feed there before continuing north. The seasonal wetlands form a funnel for birds heading from the Gulf Coast and points…