Among most North American songbirds, it’s males alone who sing. But during the nesting season, we also hear female cardinals. Just when she sings and whether or not she matches his song may determine when the male brings food to the nest. Support comes from Sasquatch Books, announcing…

Birdsong owes its beauty and variety to a complex structure called the syrinx. The name comes from an ancient Greek story. Syrinx was a beautiful wood nymph, and she was trying to escape the advances of the satyr Pan. Just as Pan caught her, Syrinx was transformed into reeds. And Pan was…

Early spring in the West resounds with the percussive hammering of woodpeckers. Their rhythmic drumming functions as other birds' songs do, to broadcast over a long distance a clear statement of territory and mating rights. Learn about this Pileated Woodpecker and the others in this show -…

Today marks the Vernal Equinox. And birds are singing in the new season. Listen to the sounds of the Greater Prairie-Chicken, Limpkin, Vesper Sparrow, Black Scoter, Horned Lark, Sandhill Crane, Western Meadowlark, Black Oystercatcher, and Western Screech-Owl. This story was also produced…

The Kakapo of New Zealand is a kind of parrot, but one that doesn’t fly. At five pounds, it’s the world’s heaviest parrot. And like many parrots, it’s long-lived -- up to 90 years. Still, the species is highly endangered. These odd parrots evolved in an island world that lacked terrestrial…

The Lark Sparrow is large, gorgeous, and unmistakable. Because of its beauty, a Lark Sparrow was chosen for the cover of Sparrows and Buntings: A Guide to the Sparrows and Buntings of North America and the World. Lark Sparrows nest throughout the West and Midwest, in grassy habitats with…

Birds’ voices invite us to step into nature and learn more about the singers. Hearing what’s distinctive in one bird’s voice — compared to another — helps us identify our avian neighbors without seeing them. Amazing! The differences between the songs of three marsh-dwellers: the brassy…

By March in the West, Song Sparrows and other songbirds that don't migrate are already singing heartily to attract mates. Many other birds - including this Warbling Vireo - will return north from the tropics in April and May, announcing themselves in song as soon as they arrive in nesting…

When American Robins gather to pluck berries, you can expect to see a lot of fluttering. The robins are heavy, making it a lot harder to perch and creep along a thin stem. And they have long, strong legs because they spend so much time walking and hopping on the ground in search of food…

The small, nondescript Pied-billed Grebe has an astonishing talent. The grebe is the master of its own buoyancy. It can squeeze out both the air trapped in its feathers and in its internal air-sacs and sink effortlessly. Learn more about the amazing, sinking Pied-billed Grebe at Cornell's…