Thanks Chris. I also really enjoy these calls that you have definitively identified. Is the difference in amplitude between the two calls a function of the birds' altitudes?
Linda Orkin. Sent from my iPhone On Oct 4, 2012, at 1:40 PM, "Christopher T. Tessaglia-Hymes" <c...@cornell.edu> wrote: > For those interested, here are some examples of typical Gray-cheeked Thrush > night flight calls from some recent nights over Etna, NY. > > Sincerely, > Chris T-H > > -- > Christopher T. Tessaglia-Hymes > Field Applications Engineer > Bioacoustics Research Program, Cornell Lab of Ornithology > 159 Sapsucker Woods Road, Ithaca, New York 14850 > W: 607-254-2418 M: 607-351-5740 F: 607-254-1132 > http://www.birds.cornell.edu/brp > -- > NFC-L List Info: > Welcome and Basics > Rules and Information > Subscribe, Configuration and Leave > Archives: > The Mail Archive > Surfbirds > BirdingOnThe.Net > Please submit your observations to eBird! > -- > <ETNA_NY_20121004.051815_Gray-cheeked Thrush.wav> > <ETNA_NY_20121004.055315_Gray-cheeked Thrush.wav> > <ETNA_NY_20121004.060115_Gray-cheeked Thrush.wav> > <ETNA_NY_20120928.001239_Gray-cheeked Thrush.wav> > <ETNA_NY_20120928.001739_Gray-cheeked Thrush.wav> > <ETNA_NY_20120930.033958_Gray-cheeked Thrush.wav> -- NFC-L List Info: http://www.NortheastBirding.com/NFC_WELCOME http://www.NortheastBirding.com/NFC_RULES http://www.NortheastBirding.com/NFC-L_SubscribeConfigurationLeave.htm ARCHIVES: 1) http://www.mail-archive.com/nfc-l@cornell.edu/maillist.html 2) http://www.surfbirds.com/birdingmail/Group/NFC-L 3) http://birdingonthe.net/mailinglists/NFCL.html Please submit your observations to eBird: http://ebird.org/content/ebird/ --
