Just one more observation per Jerry Liguori... http://utahbirders.blogspot.com/2011/01/swainsons-hawks-<http://utahbirders.blogspot.com/2011/01/swainsons-hawks-migrate-at-night.html> migrate-at-night.html<http://utahbirders.blogspot.com/2011/01/swainsons-hawks-migrate-at-night.html>
On Fri, Mar 2, 2012 at 7:59 AM, John Arvin <jar...@gcbo.org> wrote: > Ken, > I don't think there were any nighttime observations of raptors on the > platform study per se, but some of the observers (not me unfortunately) did > record small kettles of Missippii Kites which would have had to have been > flying part of the distance in the dark just, as you say, because of the > distance involved. All platforms had various falcons but these may have > been coastwise rather than trans-gulf migrants. > > John C. Arvin > Research Associate > Gulf Coast Bird Observatory > 103 West Hwy 332 > Lake Jackson, TX 77566 > jar...@gcbo.org > www.gcbo.org > > Austin, Texas > > > ------------------------------ > *From*: "Kenneth Victor Rosenberg" <k...@cornell.edu> > *Sent*: Friday, March 02, 2012 9:05 AM > *To*: "Benjamin Van Doren" <bmvando...@gmail.com> > > *Subject*: Re: [nfc-l] Night Migrating Raptors > > > I would suspect that the nocturnal movements by raptors will turn out to > be primarily over water -- where the total flight range involved > necessitates a partly nocturnal crossing. Are there any other night-time > records from the Gulf oil platform work a while back? Satellite tracking > data may shed some light (or darkness) as well. > > KEN > > > Ken Rosenberg > Conservation Science Program > Cornell Lab of Ornithology > 607-254-2412 > 607-342-4594 (cell) > k...@cornell.edu > > On Mar 1, 2012, at 10:24 PM, Benjamin Van Doren wrote: > > Awesome pictures, Chris. Michael, I recorded a calling Osprey on 4/16/11 > at about midnight. However, I'm not completely convinced it's of an > overflying migrant because it sounds relatively close to the microphone and > there are nesting Ospreys close by. Still, it's the only Osprey > vocalization I've found from that microphone (again, with nesting Ospreys > very near) so I'm not exactly sure what to make of it. Does anyone know > about the amount of vocalizing territorial Ospreys do at night? I've > attached the recording. > > Benjamin > > On Thu, Mar 1, 2012 at 9:26 PM, Michael O'Brien <tsw...@comcast.net>wrote: > >> Chris, >> >> Those photos are amazing! And they brings up an interesting general >> question about nocturnal migration by raptors. How much do they move at >> night? In Cape May I see plenty of evidence of at least limited nocturnal >> movement. We regularly see American Kestrels, Sharp-shinned Hawks, and >> Northern Harriers present in numbers (sometimes already high overhead) at >> first light when they were not present the day before. Also I have seen >> Osprey and Peregrine head out in apparent migration flight over Delaware >> Bay well after sunset. But the only nocturnal flight call I have heard from >> a raptor was from an Osprey which gave acouple of "tew" calls overhead a >> good two hours before sunrise. I wonder if others have seen or heard >> evidence of nocturnal migration by raptors. >> >> thanks, >> Michael >> >> Michael O'Brien >> Victor Emanuel Nature Tours >> www.ventbird.com >> ------------------------------ >> *From: *"Christopher T. Tessaglia-Hymes" <c...@cornell.edu> >> *To: *"NFC-L" <nf...@list.cornell.edu> >> *Sent: *Thursday, March 1, 2012 4:01:22 PM >> *Subject: *Re: [nfc-l] Night Migrating Raptors >> >> >> Below is a link of a few pictures I managed to capture of a couple of the >> individuals. Unfortunately, due to our operations, I was not able to take >> time for extensive documentation. It was a very neat spectacle to have >> witnessed. Some details are at right of the album at the link, below. >> >> https://picasaweb.google.com/112522159565855378380/NightMigratingRaptors >> >> Sincerely, >> Chris T-H >> Currently at sea in the Gulf of Mexico, aboard the M/V Emily Bordelon. >> >> >> >> On Mar 1, 2012, at 4:41 AM, Christopher T. Tessaglia-Hymes wrote: >> >> Although these birds weren't making vocalizations, but it has been >> really cool to witness. >> >> I'm on the M/V Emily Bordelon about 150 miles WNW of Tampa, FL, working >> on recovering oceanographic research instruments. We're conducting 24-hour >> operations with deck lights blazing. from approximately 07:10 to 07:25 GMT >> (02:10 to 02:25 AM EST) the deck crew and I observed at least three >> simultaneous SWALLOW-TAILED KITES, 1 Laughing Gull, and a single OSPREY >> approach the vessel during an extended full-stop drifts. This was at about >> N28 26.491 by W85 27.459. I managed to get some half-decent photos of the >> Kites as they drifted over the vessel. >> >> At another point, from approximately 08:40 to 09:20 GMT (02:40 to 03:20 >> AM EST) we were visited by at least two more night migrating SWALLOW-TAILED >> KITES. I did not obtain photos of those birds. This was at about N28 17.256 >> by W85 32.837. >> >> I imagine there are several birds in migration across the Eastern Gulf >> of Mexico at this point and we should expect to have more observations at >> the next couple of nighttime stations. >> >> Good birding! >> >> Sincerely, >> Chris T-H >> >> -- >> Christopher T. Tessaglia-Hymes >> TARU Product Line Manager and Field Applications Engineer >> Bioacoustics Research Program, Cornell Lab of Ornithology >> 159 Sapsucker Woods Road, Ithaca, New York 14850 >> W: 607-254-2418 M: 607-351-5740 F: 607-254-1132 >> http://www.birds.cornell.edu/brp >> >> >> -- >> *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://www.mail-archive.com/nfc-l@cornell.edu/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/> >> !* >> -- >> >> >> -- >> Christopher T. Tessaglia-Hymes >> TARU Product Line Manager and Field Applications Engineer >> Bioacoustics Research Program, Cornell Lab of Ornithology >> 159 Sapsucker Woods Road, Ithaca, New York 14850 >> W: 607-254-2418 M: 607-351-5740 F: 607-254-1132 >> http://www.birds.cornell.edu/brp >> >> -- >> *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://www.mail-archive.com/nfc-l@cornell.edu/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/> >> !* >> -- >> -- >> *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://www.mail-archive.com/nfc-l@cornell.edu/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/> >> !* >> -- >> > > -- > *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://www.mail-archive.com/nfc-l@cornell.edu/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/> > !* > -- > <Osprey_20110416.003252.wav> > > > -- > *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://www.mail-archive.com/nfc-l@cornell.edu/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/> > !* > -- > > -- > *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://www.mail-archive.com/nfc-l@cornell.edu/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/> > !* > -- > -- 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/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: http://ebird.org/content/ebird/ --
