The Washington Gap Analysis Project created breeding bird maps only. The non-breeding birds (e.g., wintering, pelagic (coastal), and birds expanding their ranges) are represented only by NatureMapping sightings.
The Washington Gap Analysis Project could not find any historical research records (i.e., Breeding Bird Atlas, Breeding Bird Survey, Bird Banding and Recovery) for 73 species of birds. The Least Tern is one of the species.
NatureMapping observations reported by townships throughout the year.
The Least Tern winters from Central America south. It nests through the central US states, as well as on the east coast and Florida. In the west, it nests on the coast of California and Baja California.Text edited by Gussie Litwer