Support
Subscribe
Subscribe to BirdNote

Sign up to receive a weekly email preview of the following week's shows!

Sign Up
Support BirdNote

Help BirdNote tell more stories, reach more people, and inspire action.

DONATE

Past Shows

Please enter the keywords you want to search by below.

American Bittern - Thunder-Pumper

American Bitterns nest in marshes across the northern half of the United States and throughout much of Canada, and they winter along both US coasts south into Central America. But in some places, bitterns are in serious trouble. Much of the extensive, shallow marshland they once bred in has been... read more »

RELATED
Topics & Themes:  vocalization

Why Birds Stand on One Leg

Birds' legs have an adaptation called "rete mirabile" that minimizes heat loss. The arteries that transport warm blood into the legs lie in contact with the veins that return colder blood to the bird's heart. The arteries warm the veins. Because the veins also cool the arteries, the bird’s feet... read more »

RELATED
Topics & Themes:  science

Are Northern Forest Owls Coming South This Winter?

The boreal forest stretches across Canada and Alaska, a huge expanse of woods, wetlands and wilderness. And it’s full of magnificent forest owls that depend on mice and other rodents for food. Those populations can boom and bust, so in lean years, hungry owls often fly as far south as the... read more »

RELATED
Topics & Themes:  ecology

Wingspan Takes Flight

The goal is to attract birds to your aviary by collecting things they like to eat. Your birds are worth points, and they score you more points when they lay eggs, gather food, or do other bird-y things. As you study your birds’ powers and strategize your next move, you’re getting a stealth... read more »

Encounter with a Cassowary

In a tropical woodland in eastern Australia, you glimpse a Southern Cassowary, a huge flightless bird that must rate as the most prehistoric looking of all birds. Cassowaries are capable of making remarkable sounds, including the lowest known bird call in the world, barely audible to the human... read more »

RELATED
Topics & Themes:  sound, vocalization

Pelicans Go Fishing

There are two kinds of pelicans in North America – the American White Pelican and the Brown Pelican. And they’ve evolved different tactics to catch their prey. read more »

RELATED
Topics & Themes:  ecology

The Benefits of a Raven's Black Feathers

It turns out, a raven's black plumage works quite well in the desert. Black feathers do conduct the sun’s warming rays, but they concentrate that solar heat near the feathers’ surface. All it takes is a breeze from the wind, or from flying, to move all that heat away from the surface of the... read more »

RELATED
Topics & Themes:  ornithology, plumage

Snow Geese: Too Much of a Good Thing

When small family farms gave way to large, industrial agricultural operations, the Snow Geese followed. Waste grain left over from harvests has allowed Snow Goose populations to jump. Now, there are so many Snow Geese they degrade their Arctic summer habitat, threatening other birds. Is there a... read more »

RELATED

How Much Do Birds Eat?

There used to be a saying about somebody who doesn’t eat much — “she eats like a bird.” But how much does a bird typically eat? As a rule of thumb, the smaller the bird, the more food it needs relative to its weight. A Cooper’s Hawk, a medium-sized bird, eats around 12% of its weight per day. For... read more »

RELATED

Giblets and Gizzards

A bird’s stomach is divided into two parts. The first part is a lot like our stomach; it’s filled with digestive juices to break down food. But the second part — that’s the bird’s gizzard. It’s a strong, muscular pouch that breaks down hard foods like seeds and nuts.Support for BirdNote comes... read more »

RELATED

Pages

Home
Shows
Galleries
More