BirdNote features Scott Weidensaul new book "Living on the Wind". It describes how Blackpoll warblers and others nested in W Alaska and Canada during the peak of glaciation (18K yrs BP). Due to gigantic high pressure system over glacier, the birds migrated in fall on big tailwind of 155o (NW to SE). (This is based on pollen studies of lake sediment.) And they still do. Raises some Q's and I havent read the book.
I did click on "migration" in "Related Topics" and found a whole list of previous postings on aspects of bird migration from Peter Matthiessen to Vaux' swift to "Moonbird". "You can listen to the podcast by clicking on the upper right area. It has birdsong and wind too." Migration Routes Evolve | BirdNote <http://birdnote.org/show/migration-routes-evolve> <http://birdnote.org/show/migration-routes-evolve> <http://birdnote.org/show/migration-routes-evolve> Migration Routes Evolve | BirdNote Support BirdNote Help BirdNote tell more stories, reach more people, and inspire action. <http://birdnote.org/show/migration-routes-evolve> View on birdnote.org Preview by Yahoo ---- Join or Leave mou-net: http://lists.umn.edu/cgi-bin/wa?SUBED1=mou-net Archives: http://lists.umn.edu/archives/mou-net.html
