As the sun sets over New York City, author Helen Macdonald takes in the wonders of spring migration from the top of the Empire State Building. She watches a long procession of songbirds pass overhead, but her joy is dampened when she notices some of the birds circling endlessly around the…

At the end of summer, the once-bright feathers of a male American Goldfinch look ragged. Growing new flight feathers in a process called molting makes him more vulnerable to predators. Before migrating to wintering grounds, many songbirds stop at a secondary location to undergo the…

Many oceanic species like grebes, loons, pelicans, and gulls migrate far inland to raise their young near freshwater lakes. Ring-billed Gulls, for example, breed throughout the northern U.S. Forster’s Terns can be found catching fish in the upper Midwest in the summer. In northern Canada…

Many oceanic species like grebes, loons, pelicans, and gulls migrate far inland to raise their young near freshwater lakes. Ring-billed Gulls, for example, breed throughout the northern U.S. Forster’s Terns can be found catching fish in the upper Midwest in the summer. In northern Canada…

Every year, hundreds of bird species migrate between North and South America. Some species likely evolved from ancestors that moved north in search of new breeding habitats: the “southern home” hypothesis. But others may have extended their winter ranges south: the “northern home”…

Biologists with Manomet tagged a Whimbrel named Lindsay with a GPS tracker. She has spent the summer breeding in the Arctic National Wildlife Refuge on the northern coast of Alaska. As fall migration begins, she heads straight into a storm in the Gulf of Alaska. The tempest slingshots her…

After flying all the way from South America, migratory songbirds that fly through cities often seek out urban green spaces such as parks and cemeteries. These modest-sized areas can act as verdant oases in the middle of pavement and metal and can be hidden gems for city dwellers hoping to…

During migration, some birds change orientation, often by a full 180 degrees, and travel almost the same distance — but in the opposite direction — as the rest of their species. The phenomenon is called misorientation. First-year birds are particularly susceptible. Many vagrant birds never…

In the spring, Rufous Hummingbirds journey from Mexico to the northwest U.S., some as far north as Alaska! That’s almost 1000 miles one way for a bird measuring just under four inches beak to tail, making this the longest migration of any bird relative to body length. Not long after…