I've been recording and then hand browsing most nights this spring. Even on crummy nights with drizzle or light north winds, at least one Black-billed Cuckoo vocalized each night. Total Black-billed Cuckoo calls (some are duplicate birds heard calling twice as they pass over, once distant and once clearly audible) over Etna, NY thus far (including some partial song notes) is: 190. Total Yellow-billed Cuckoo migrant songs or song fragments over Etna, NY thus far is: 41 - these birds seem to clearly sing only once and cannot be heard repeating again. Most nights I don't seem to start recording until 10:00 or 11:00pm, just due to personal logistics, so I know I've missed some birds moving earlier in the night, soon after end of civil twilight. Lots of other cool migrants have been able to be picked up including many Alder Flycatchers and multiple probable Willow Flycatchers, plus several migrant Virginia Rails and at least two Soras. A few Swainson's Thrushes and an occasional Gray-cheeked Thrush are still heard migrating (as of last night). It's been really neat hand browsing these data; I've saved clips of lots of interesting and unidentified bird sounds, including shorebirds. Quiet nights can be hand browsed in about 45 minutes, but busier nights from earlier in the spring could take upwards of 3-4 hours (because I'm selecting and saving all audio clips).
Sincerely, Chris T-H On Jun 6, 2012, at 11:10 PM, Kenneth Victor Rosenberg wrote: I was surprised to step out in my driveway (Ithaca NY) this evening and hear 4 BLACK-BILLED CUCKOOS in 15 minutes (3 in the first 5 minutes). Maybe caught the tail end of a migration burst, but at least some mysterious migrants are continuing to move at night. KEN Ken Rosenberg Conservation Science Program Cornell Lab of Ornithology 607-254-2412 607-342-4594 (cell) k...@cornell.edu<mailto:k...@cornell.edu> -- 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/ -- -- 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 -- 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/ --
