The 'perching birds,' or passerines, are the most common birds in the world today — they include sparrows, robins, and finches. They used to be very rare. Scientists have just discovered some of the earliest relatives of the passerines, including a 52-million-year-old fossil with a thick, curved beak for eating seeds.
Earliest known seed-eating perching bird discovered in Fossil Lake, Wyoming
The 'perching birds,' or passerines, are the most common birds in the world today -- they include sparrows, robins, and finches. They used to be very rare. Scientists have just discovered so..
