By carrying more people in a single vehicle, mass transit can use less energy than cars. Taking steps to reduce greenhouse gas emissions can help the hundreds of bird species put at risk by climate change. Not to mention, you can do a little birding on the commute – on the way to the bus or train stop, and on the ride itself. More info and transcript at BirdNote.org. Want more BirdNote? Subscribe to our weekly newsletter. Sign up for BirdNote+ to get ad-free listening and other perks. BirdNote is a nonprofit. Your tax-deductible gift makes these shows possible. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

Helmeted Guineafowl are known for moving in frantic flocks, often running and squawking about. In their native range – from Senegal to South Africa – these chicken-sized birds are favored prey of wild cats and Martial Eagles, so they need to be alert! Because they’re also spooked by unfamiliar people, guineafowl are often employed as burglar alarms on farms. More info and transcript at BirdNote.org. Want more BirdNote? Subscribe to our weekly newsletter. Sign up for BirdNote+ to get ad-free listening and other perks. BirdNote is a nonprofit. Your tax-deductible gift makes these shows possible. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

When a Northern Saw-whet Owl spreads its wings, many birds can see something our human eyes can’t: the owl’s flight feathers glow with ultraviolet light. It’s invisible to humans without the help of a UV blacklight. While the glowing feathers on parrots might help them attract mates, the reason for the owls’ glowing feathers still isn’t clear. However, scientists realized that they could estimate an owl’s age based on the pattern of luminescent color on the wings, which changes predictably as birds grow and replace their feathers. More info and transcript at BirdNote.org. Want more BirdNote? Subscribe to our weekly newsletter. Sign up for BirdNote+ to get ad-free listening and other perks. BirdNote is a nonprofit. Your tax-deductible gift makes these shows possible. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

Although the American Crow may seem indifferent about pillaging another bird's nest, they regard a threat to their own young as a punishable offense. To protect their nest, adult crows dive-bomb people, cats, other animals, and even other birds. Young crows fledge when they are around five or six weeks old, and their parents continue to care for them for months. More info and transcript at BirdNote.org. Want more BirdNote? Subscribe to our weekly newsletter. Sign up for BirdNote+ to get ad-free listening and other perks. BirdNote is a nonprofit. Your tax-deductible gift makes these shows possible. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

Rosy-Finches are a family of alpine songbirds. Three species can be found in the US and Canada: Grey-Crowned Rosy-Finch, Black Rosy-Finch and Brown-capped Rosy-Finch (shown above). All wear pink on their bellies and wings. But spotting that namesake hue means trekking up some of the most rugged terrain on the continent. More info and transcript at BirdNote.org. Want more BirdNote? Subscribe to our weekly newsletter. Sign up for BirdNote+ to get ad-free listening and other perks. BirdNote is a nonprofit. Your tax-deductible gift makes these shows possible. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.