Forster's Tern
Sterna forsteri

Montrose Beach, Lincoln Park, Chicago
Cook County, IL
5 June 2006

This first-summer Forster's Tern stopped briefly on Montrose Beach. in the first and second images, you can see the dark secondaries, and the first and third images show the darker tertials. In flight the bird one could see extensive darkness through the outer half of the primaries.


This page was last updated on 5 June 2006.
Contact Geoff Williamson with any comments, updates or suggestions.