Not really about nocturnal sounds but I did a little essay comparing songs and showing sonograms of Yellow Warblers from Yellowknife, NWT with Yellow and Chestnut-sided from Maine that some of you may find fun and interesting at: http://www.borealbirds.org/blog/?p=186
I haven't tallied calls registered from last night's flight but it was certainly booming before midnight when I went to bed. Jeff Wells -- NFC-L List Info: http://www.NortheastBirding.com/NFC_WELCOME http://www.NortheastBirding.com/NFC_RULES Archives: 1) http://www.mail-archive.com/nfc-l@cornell.edu/maillist.html 2) http://birdingonthe.net/mailinglists/NFCL.html 3) http://www.surfbirds.com/birdingmail/Group/NFC-L Please submit your observations to eBird: http://ebird.org/content/ebird/ --
