There's no way to estimate numbers, but the rarities found by birders must represent just a tiny fraction of what's actually there. Janine Polk Eau Claire --- On Tue, 11/8/11, Al Schirmacher <alschirmacher@xxxxxxxx> wrote: From: Al Schirmacher <alschirmacher@xxxxxxxx> Subject: [wisb] Rarities To: "MOU" <mou-net@xxxxxxxxxxxxx> Cc: wisbirdn@xxxxxxxxxxxxx Date: Tuesday, November 8, 2011, 6:36 AM The recent rash of Midwestern rarities drives the question, what percentage of rarities are seen by birders? Does the presence of a Vermillion Flycatcher mean that ten are in the Midwest? How would one answer such a question? Al Schirmacher#################### 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