The purpose of anting remains something of a mystery, although most experts agree it has to do with transferring the ants’ secretions to the bird’s body. It’s likely that the ants’ formic acid helps the bird control feather-mites and other parasites. An avian spa treatment!

The Northeast population of Roseate Terns is endangered. Each summer, roughly twenty-five hundred Roseate Terns are found on Ram Island, a 2.5-acre island off the coast of Massachusetts. In the 1960s and 70s, gull numbers surged. Gulls drove terns off of Ram Island, until biologists began…

Along the Gulf of Mexico, you’ll find undeveloped sandy flats and shallow lagoons. This is prime habitat for Wilson’s Plovers to nest and raise their chicks. But life on the beach can be tough for birds. In many parts of its U.S. range on the Gulf and south Atlantic coasts, Wilson’s Plover…

Summer Tanagers snatch bees and wasps in mid-air, as they buzz about. Bug in beak, the bird flies to a perch, slams the insect against a branch until it’s dead, then wipes it against the branch to remove the stinger before eating it. Summer Tanagers will also tear open paper-like wasp…

Many of the waterbirds that winter along the coasts of the Lower 48 spend their summers breeding on tundra ponds and lakes. Loons, grebes, scoters and others call throughout the long summer days. Together, their voices create a symphony that evokes the Arctic north.

Since Killdeer don’t always pick the safest places to lay their eggs, they’ve developed a clever way to protect their young. They use the art of distraction. When it spots a predator close by, the Kildeer parent will pretend it has a broken wing - calling loudly and limping along as it…

The dawn chorus is that time when, just before sunrise, birds begin to sing. One by one, then all together, their voices join to greet the new day. But which bird sings first? The timing of when a bird joins the chorus seems to depend on how well it can see in low light. So the birds with…

Many native cavity-nesters - including this Black-capped Chickadee - will nest in an artificial birdhouse, or nestbox. Look for a nestbox that's plain wood. If the birdhouse comes with a perch, remove it. It just makes it easier for a predator bird to land and go after the eggs or young…

In spring, a male Sooty Grouse calls from a concealed perch high in a tall conifer. Known as “hooting,” it’s a very low-pitched, five or six-note thunking sound. When a female cackles in response, the male flies down and displays to her by strutting and fanning his tail. Females are…

During spring at Lostwood National Wildlife Refuge in North Dakota, male Sharp-tailed Grouse - like the one pictured here - perform their elaborate mating dances on a matted patch of ground called a lek. They stomp their feet, extend their wings, and zip around the lek. Then, in an instant…