Andrew, et al,
I concur that the single call note is typical in nocturnal migration. I have probably heard hundreds of single call notes from nocturnal migrants in Cape May, but the only time I recall hearing multiple-note vocalizations as in Bill's cut is when a bird was flushed from a marsh. best, Michael Michael O'Brien Victor Emanuel Nature Tours www.ventbird.com ----- Original Message ----- From: "Andrew Farnsworth" <andrew.farnswo...@gmail.com> To: c...@cornell.edu Cc: NFC-L@cornell.edu, "Bill Evans" <wrev...@clarityconnect.com> Sent: Thursday, October 6, 2011 1:38:26 PM Subject: Re: [nfc-l] American Bittern NFC Hi all, I've certainly heard American Bittern produce isolated notes more often than not when I've heard them migrating at night, both in the field and in the lab from recordings; I'd hazard a guess to say that the single note call is more likely to be encountered . . . but this is really pure speculation, when it comes down to it, because I've not heard a tremendous number of bitterns in flight at night! Best, Andrew On Thu, Oct 6, 2011 at 12:11, Chris Tessaglia-Hymes <c...@cornell.edu> wrote: > Andrew, > > Thanks for pulling this together, and thanks Bill, for providing these clips! > > Is it most typical for American Bitterns to produce these paired calls during > migration, or do they often just do single isolated notes? > > This is very helpful! > > Thanks again! > > Sincerely, > Chris T-H > > -- > Christopher T. Tessaglia-Hymes > TARU Product Line Manager and 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 > > > > -----Original Message----- > From: Andrew Farnsworth [mailto:andrew.farnswo...@gmail.com] > Sent: Thursday, October 06, 2011 11:59 AM > To: Chris Tessaglia-Hymes > Cc: NFC-L@cornell.edu; Bill Evans > Subject: Re: [nfc-l] American Bittern NFC > > Hi all, > With Bill Evans's permission, I attach a heavily edited cut of American > Bittern flight calls that Bill recorded and sent to me - I believe these > recordings come from Minnesota, though I cannot say for sure without some > further investigation. This is certainly the best recording I have, I am not > sure and have not yet checked if others exist in Macaulay or Xeno-Canto. > > Best, > Andrew > > On Thu, Oct 6, 2011 at 09:59, Chris Tessaglia-Hymes <c...@cornell.edu> wrote: >> Does anyone have an example of an American Bittern NFC they could >> attach and post to the List? >> >> >> >> Thanks! >> >> Sincerely, >> Chris T-H > > -- 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/ -- -- 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/ --
