American Goldfinches are one of our most familiar birds, but they lead lives that are anything but ordinary. These birds will sometimes raise two broods a year, have a secret weapon against cowbirds, and have the ability to distinguish between songs that — to our ears — sound the same…

A slim, sleek bird with a spiky crest, Phainopepla comes from the Greek for “shining cloak.” The name refers to the male’s glistening, inky black feathers, which are set off by piercing red eyes. And if the Greek name isn’t helping you picture it, a common nickname might: the goth cardinal…

In the arid Arizona desert, where cacti thrive but trees are scarce, the Gila Woodpecker and Gilded Flicker carve out nest cavities in living saguaros. Tall, old saguaros may be pocked with twenty or more nest holes, bearing witness to decades of woodpecker families. The woodpeckers…

Resident Cooper’s Hawks that nest in the urban areas of Albuquerque, New Mexico, are thriving as the populations of doves, their prey, have exploded. The easy prey gives the urban birds a competitive advantage over hawks in more natural habitats, where prey is less concentrated. The…

Trumpeter Swans weigh over 25 pounds and measure about five feet from beak to tail. They were nearly hunted to extinction by the turn of the twentieth century. In Arkansas, a small flock of Trumpeter Swans began spending the winter at Magness Lake in the 1990s. It has now grown to one of…

Trumpeter Swans land in a plowed field to forage for remnant potatoes, grain, and other waste crops. This swan is among the largest of all waterfowl; the Tundra Swan is somewhat smaller. These swans migrate in family groups each fall from nesting sites in Canada and Alaska. Learn more…

PhD student Mikko Jimenez and his colleagues are using machine learning to improve our ability to forecast bird migration. Machine learning is a type of artificial intelligence that can find patterns in huge amounts of data much faster than a person can, and then use those patterns to make…

Every bird species uses its wings a little differently, and some are specialized for highly efficient flight. But that means going without other abilities. Swallows and hummingbirds (like this Talamanca Hummingbird) capture their food on the wing, but they can’t walk. Swifts, which are…

It's the time of year that geese migrate south for the winter. Isn't it? So why are there so many geese still hanging around, setting up housekeeping on our parks and golf courses? Did they decide to forgo the long trip north? In the early 1900s, non-migratory geese were brought in by the…

Found in the Sierra Madre, the Arizona Woodpecker has a special connection to the mountain range. Sharing mid-elevation pine and oaks with fellow border straddlers, these small brown birds with white and brown cheeks stand out from other Woodpeckers with their heavily marked white…