Albeit soft and slightly distant, this bird was recorded over Etna, NY on 23 September 2016 at 23:25.
I would consider this to be a classic example because its peak frequency is above the 5kHz “safety” demarkation line. This bird peaks around 5.25 kHz and has an overall duration of about 250 milliseconds. Similar to the “possible Bicknell’s Thrush” examples posted yesterday, the sharp onset followed by a variably modulated and notably longer trailing descent is the call structure which caught my eye while browsing through my data last night. Attached are both the recorded call (with some lower cricket and noise bands gently filtered out) and a screen grab of the call for visual representation. Good night listening! 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<tel:607-254-2418> M: 607-351-5740<tel:607-351-5740> F: 607-254-1132<tel: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://email@example.com/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/ --
Description: ETNA_NY_20160923_232554_BICKNELL'S THRUSH-edited.wav