Jerald, In my opinion, this looks and sounds like mechanical noise, not biological.
There’s an old sign hanging from a building in my neighborhood which makes distinctive squeaks on windy nights. This sounds very similar to your sound, which could be coming from something like that or from a door hinge, etc. Just my take on it. Sincerely, Chris T-H On May 15, 2016, at 9:50 PM, Jerald <jrebel...@gmail.com<mailto:jrebel...@gmail.com>> wrote: Here's another better recording of the same call, with more time at the beginning. On Sun, May 15, 2016 at 9:32 PM, Jerald <jrebel...@gmail.com<mailto:jrebel...@gmail.com>> wrote: Does anyone know what this call is? I've been hearing it all night but I have no idea what it is. Jerald Delaware -- Jerald -- Jerald -- NFC-L List Info: Welcome and Basics<http://www.northeastbirding.com/NFC_WELCOME> Rules and Information<http://www.northeastbirding.com/NFC_RULES> Subscribe, Configuration and Leave<http://www.northeastbirding.com/NFC-L_SubscribeConfigurationLeave.htm> Archives: The Mail Archive<http://firstname.lastname@example.org/maillist.html> Surfbirds<http://www.surfbirds.com/birdingmail/Group/NFC-L> BirdingOnThe.Net<http://birdingonthe.net/mailinglists/NFCL.html> Please submit your observations to eBird<http://ebird.org/content/ebird/>! -- <UNKN 2148 5-15-16.aif> -- 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/ --