It’s a wistful moment when your backyard birds — like these Black-capped Chickadees — depart their nestboxes. By October, it’s time for one last duty as nestbox landlord: to clean it out. Cleaning will reduce the incidence of parasites in the box and make it more inviting to next spring’s…

These Emperor Penguins feed on fish and squid in the icy ocean. Getting into the sea is easy, but getting out is another story. How does a penguin haul its plump, 80-pound body up and over icy ledges that are several feet high, while avoiding nearby predators? Underwater video has revealed…

Autumn brings many species of wintering ducks and seabirds to our waters. Watch carefully. Some dabble along the surface, feeding along shallow edges of lakes and estuaries. Others dive under the water, using their feet and occasionally their wings for propulsion. The male "dabblers" are…

Hooded Mergansers, affectionately known as “Hoodies,” nest across most of the northern US and well into Canada. They’re especially prevalent around the Great Lakes, though some winter as far south as Florida. By November, courtship and pair formation is well under way. And by early spring…

After hawks and eagles, some of the sharpest eyes belong to hawk-watchers, experienced spotters who count raptors during spring and fall migration. Groups like HawkWatch International organize census counts of hawks (like this Red-tailed Hawk) and other raptors. HawkWatch sites lie along…

Chickadees and titmice, nuthatches and jays, and woodpeckers, like the Pileated pictured here, all love suet. As do birds whose beaks can’t open seeds, like tiny kinglets, and almost any wintering warbler. The Brown Creeper, usually creeping up tree trunks, is a cool bird to discover at…

American Robins (like this male seen here with its young), House Finches, and Song Sparrows may all nest within one small garden. By selecting different nesting strata, the species avoid competing for the same nesting sites. If you plant your garden in multiple layers – trees both short…

The American Dipper stands on a rock in a stream, bobbing up and down on its long legs - "dipping" - hence the name. But watch! This nondescript bird steps off a small boulder right into the torrent, and begins to peer under water. What the American Dipper might lack in bright color it…

In spring, we often hear woodpeckers hard at work, carving out nest holes in tree trunks. And now that fall has arrived, we may hear that excavating sound again. Some woodpecker species stay year round in the region where they nest, while others migrate south in winter. Those that remain…

A forest in New Zealand rings with the sound of bellbirds, also known as Korimako or Makomako. Many bellbirds sing together, especially in the morning. Pairs sing duets. And a pair may counter-sing with its neighbors, perhaps letting them know that this patch of land is taken. It all…