Threatened Species

A Red Knot smiles for the camera. The serrations on the inside of its bill help it grip slippery things. They look like the "teeth" on a saw, but they're not real teeth, so the Red Knot never has to go to the dentist! Joel Sartore.

Rescuing the Rufa

— As climate change ups the stakes for all birds, the U.S. Fish and Wildlife Service lists the rufa Red Knot as threatened.