Owl pellets aren't poop, and they're not vomit either. Here's how to tell a pellet from a dropping, what's actually inside ...

Dapperly dressed in black, white, and glacial gray, the Northern Shrike might pass as any other songbird. But don’t be fooled ...

Whether you’re planting in your yard, on a windowsill, or in a public space, you can help create more bird-friendly habitats with native plants. Find the best plants for your area (and where to get ...

This medium-sized owl is widespread but not particularly well known in North America. The Long-eared Owl seems to call less often or less conspicuously than many of our other owls, so it may be ...

This tiny bird is often hard to see in summer, when it lives high in tall conifers. In migration and winter, however, it often flits about low in woods and thickets, flicking its wings nervously as it ...

Flashing its trademark yellow rump patch as it flies away, calling check for confirmation, this is one of our best-known warblers. While most of its relatives migrate to the tropics in fall, the ...

This rather tame, active, crested little bird is common all year in eastern forests, where its whistled peter-peter-peter song may be heard even during mid-winter thaws. It is related to the ...

In North America, the Magnificent Frigatebird is seen most commonly in Florida. However, they also appear regularly along the Gulf Coast, and strays have turned up in many parts of the continent.

Uncommon and somewhat mysterious is this little finch of the far West. It nests very locally in the foothills of California and Baja, often near streams in fairly dry country. Its winter range varies: ...

Part of a complex of similar gulls, this bird closely resembles the American Herring Gull or Ring-billed Gull, and is intermediate between those two in size. The California Gull nests around lakes in ...

The Northern Fulmar is patterned somewhat like a gull but very different in flight behavior. A Northern Fulmar flies fast with quick wingbeats and stiff-winged glides, wheeling effortlessly in strong ...

Although it is patterned like a sparrow, its shape, actions, and callnotes all reveal that this bird is really a goldfinch in disguise. After nesting in the conifer woods, Pine Siskins move out into ...