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 ---- Join or Leave mou-net: http://lists.umn.edu/cgi-bin/wa?SUBED1=mou-net Archives: http://lists.umn.edu/archives/mou-net.html

