Sterna forsteri ORDER: CHARADRIIFORMES FAMILY: LARIDAE
IUCN Conservation Status: Least Concern
© Marie Read
One of several medium-sized terns that are similar in appearance, the Forster's Tern breeds primarily in marshes and winters along the coasts. The comma-shaped black ear patch in winter plumage is distinctive, but some other plumages are very confusing.
Common call a descending "kerrr." Threat call a harsh "zaar."