Caspian Terns were first documented to nest in coastal Washington in 1958 by Gordon Alcorn (Alcorn, G. D. 1958. Nesting of the Caspian Tern in Grays Harbor, Washington. Murrelet 39:19-20.).

Caspian Tern nesting populations continued to nest and increase in Grays Harbor though the mid-1970's, but then declined and disappeared by the early 1980's.

Cheers,

Chris

Chris Thompson
Research Scientist
Washington Dept. Fish and Wildlife