10/4-5/16, 8:00 PM-6:30 AM -- Yard, Westport CT

While looking over recordings from this night, I came across two calls that 
appeared to me significantly higher and purer-toned than standard gray-cheeked 
calls. Both peak at around 5 kHz. The call at 2.55.46 is the highest of the 
two, and thus more likely Bicknell's. Am I correct in calling them BITH? Thank 
you for any assistance.

Preston Lust, Westport CT

NFC-L List Info:

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:


Attachment: Thrush_2016-10-05_02.55.46_00.wav
Description: Wave audio

Attachment: Thrush_2016-10-05_05.03.36_00.wav
Description: Wave audio

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