About the NWRS
The National Wildlife Refuge System, within the U.S. Fish and Wildlife Service, manages a national network of lands and waters set aside to conserve America’s fish, wildlife, and plants.
Learn more about the NWRS
The smallest of the North American terns, they are migratory seabirds that breed primarily along the California coast. Their swallow-like flight gave them their earlier common name, Sea Sparrows. They were listed as Federally Endangered in 1970 mainly due to habitat loss.
Page Photo Credits All photos courtesy of USFWS unless otherwise noted.
Last Updated: Dec 10, 2015