Bill Schmoker, last night, presented migration to the Denver AudubonMaster Birder class. The most important new piece of scientific investigation came from a class member (I'm not sure which one).
Bill: what prompts a Yellow Warbler to migrate? Class Member: He gets a Tweet. Hugh Kingery Franktown, CO -- You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/cobirds?hl=en.
