In the spring, Rufous Hummingbirds journey from Mexico to the northwest U.S., some as far north as Alaska! That’s almost 1,000 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…

In shallow waters off the coast of Massachusetts, ocean predators come from far and wide to hunt. Humpback whales join Great Shearwaters and many other seabirds in pursuing sand lance, a tiny fish that these top predators rely on for sustenance. But sand lance are vulnerable to climate…

Every BirdNote episode starts with a solid grounding in research. When we play a bird sound for you, first we make sure you're hearing the right species. But not just that — we bear in mind the distinction between songs and calls, and we make sure the recording comes from an appropriate…

Whether you know your neighborhood inside-out or you just moved and are getting to know the area, BirdNote adds another dimension to how you understand the place you live — by understanding the birds. Our hope is that by spreading knowledge about birds, BirdNote is helping you become more…

Green-winged Teal are North America's smallest dabbling duck, at just over a foot long and weighing less than a pound. The male has a cinnamon brown head with a band of green behind the eye. Both males and females have a green bar on the wing that gleams like an emerald when the sun…

One of the biggest threats to birds is the decline in biodiversity due to habitat loss — and the traditional, manicured lawn isn’t helping. Growing native plants in your yard allows you to protect birds at home, says ecologist Douglas Tallamy, who co-founded an organization called…

Loons are built for life in the water – so much so that their legs don’t work well on land. During migration, loons sometimes mistake wet pavement for the reflective surface of deep water and try to land there, then become unable to take flight again. If you see a stranded loon on a road…

The White-tailed Hawk thrives in the grassy plains of the Texas Coastal Plain, where many tropical species reach the northern limit of their ranges. White-tailed Hawks often hunt by kiting: hovering like a kite in the breeze with the wings held in a “V” above the body, dropping suddenly on…

In this episode featuring Aviary — the shapeshifting bird superhero — the surprising abilities of birds come in handy when a student gets lost exploring a cave with his class. Aviary remembers an amazing bird called the Himalayan Swiftlet that’s able to echolocate like a bat, and enlists…

Bats and birds have evolved very different ways of flying. Birds have stiff feathers projecting from lightweight, fused arm and hand bones; bats have flexible wings of membranes stretched between elongated fingers. While birds use the strong downstroke of their wings to fly, bats support…