Although anything is possible, I suspect both of the "possible" Arctic tern observations are most likely Common terns. At this time of year they can appear darker as they are in molt and tail streamers shorter. Neither observation reflected anything to suggest otherwise. Commons nest on the bay and we also have nonbreeders in various plumages. Tom Erdman, Green Bay ________________________________________ From: wisbirdn-bounce@xxxxxxxxxxxxx [wisbirdn-bounce@xxxxxxxxxxxxx] On Behalf Of Sue Peterson [suechick@xxxxxxxxxxx] Sent: Monday, July 19, 2010 5:01 PM To: wisbirdn@xxxxxxxxxxxxx Subject: [wisb] Possible Arctic Tern Sighting Door Co. I read of the possible sighting of Arctic Terns in Green Bay. Yesterday my husband was at the shore in Ephraim, Door County, and a fisherman said to him he saw an Arctic Tern. When asked if it could be the more common Caspian Tern, the fisherman said no, it was an Arctic Tern. We have no idea if he was correct. But now the comment is interesting because of the Green Bay sighting. Sue Peterson Ephraim Door Co. #################### You received this email because you are subscribed to the Wisconsin Birding Network (Wisbirdn). To UNSUBSCRIBE or SUBSCRIBE, use the Wisbirdn web interface at: //www.freelists.org/list/wisbirdn. To set DIGEST or VACATION modes, use the Wisbirdn web interface at: //www.freelists.org/list/wisbirdn. Visit Wisbirdn ARCHIVES at: //www.freelists.org/archives/wisbirdn.#################### You received this email because you are subscribed to the Wisconsin Birding Network (Wisbirdn). To UNSUBSCRIBE or SUBSCRIBE, use the Wisbirdn web interface at: //www.freelists.org/list/wisbirdn. To set DIGEST or VACATION modes, use the Wisbirdn web interface at: //www.freelists.org/list/wisbirdn. Visit Wisbirdn ARCHIVES at: //www.freelists.org/archives/wisbirdn.