So far this 'fall' migration I have heard almost no calls during night-time listening (say about 10PM through 1AM) from my hillside in Passaic County, NJ. I was puzzled why the birds appearing on radar and apparently being heard by other posters on NFC were not calling in my area. Today I decided to get up pre-dawn and see if I could hear birds in the morning. Maybe at 'night' they were too high up because of local topography and I could not hear them but as they descended in the morning I would?
My hunch worked out and I heard many calls this morning, mostly SWTH, when got outside despite hearing nothing between 10 and 11PM last night. Anyone have any idea why this might be? I have no idea if my topography guess holds any weight or if some other factor might be playing a role. Additionally, I have posted four new spectrograms from this morning's recordings on my Flickr page. These might be simple IDs, but I am still learning the ropes and any comments are appreciated. The new images all have 9-26-11 in the description. http://www.flickr.com/photos/flyordiedan/sets/72157626803578342/ Thanks for the comments and the insight, Dan Poalillo Passaic Co, NJ -- 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/[email protected]/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/ --
