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 ...

Cowboys sometimes called these owls 'howdy birds,' because they seemed to nod in greeting from the entrances to their burrows in prairie-dog towns. Colorful fiction once held that owls, prairie-dogs, ...

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 ...

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 ...

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.

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 ...

A close relative of the Rufous Hummingbird, Allen's Hummingbird has a more limited range, nesting mostly in California. This is one of the two common nesting hummingbirds in northern California ...

The mournful cooing of the Mourning Dove is one of our most familiar bird sounds. From southern Canada to central Mexico, this is one of our most common birds, often abundant in open country and along ...

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 ...

A big, broad-shouldered, predatory seabird of the North Atlantic. Usually solitary at sea, although concentrations may occur where food is abundant. Breeds mainly in Iceland and on islands north of ...

Of the various thrashers in the southwestern deserts, the Curve-billed Thrasher is the most familiar and most often seen. It makes itself more conspicuous than the rest, dashing about in the open, ...