Hi Jacob and all, There's a good summary of North American Jackdaw records in the ABA Checklist (I'm looking at the sixth edition, 2002), based in part on an article by P. W. Smith: Jackdaws reach the New World, American Birds 39: 255-258. Jackdaw is accepted on the checklists of Massachusetts and RI, but records from PA and CT were deemed of questionable origins by the respective committees. I don't know how the various Canadian provincial committees, or Saint-Pierre et Miquelon, handled their records.
The sheer number of Jackdaws that appeared in mid-80s, as well as their appearance at outer coastal sites such as SPM, Nantucket, and Block Island, is strongly suggestive of irruptive vagrancy. Personally, I would think ship-assistance was a likely factor for many or most of these records, and feel likewise about this Hooded Crow, if explicit indications of captive origins are lacking. Coming aboard ships is certainly a "natural" part of the biology of many species in the contemporary world, as has been shown for Indian House Crows, and also for species like Peregrine Falcons that routinely use ships far off-shore as bases for hunting seabirds. I must have arrived just moments after Mike and Eileen left this morning. When I arrived, the Hooded Crow had left the beach, but Tom Dulski quickly re-found it in the dead pine at the corner of the gravel lot. It soon disappeared into the woods, but I saw it fly back over to the beach just before I left, around 8:15. Shai Mitra, Bay Shore -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Jacob Drucker Sent: Wednesday, June 22, 2011 11:58 PM To: [email protected] Subject: [nysbirds-l] Eurasian Jackdaws and Hooded Crows Hi All, Out of curiosity, I was wondering if anybody knows what the birding community's reaction was when Eurasian Jackdaw's turned up in MA in 1982, and if I remember correctly, I read somewhere that they bred in PA once. Given that this species and Hooded Crow are often within proximity of each other in Europe, and behave similarly it would be interesting to compare patterns of their vagrancy. When the Jackdaws mentioned above showed up, was the birding community skeptical of their origin? How were those birds deemed wild? Argh, Jacob Drucker Manhattan -- NYSbirds-L List Info: http://www.NortheastBirding.com/NYSbirdsWELCOME http://www.NortheastBirding.com/NYSbirdsRULES http://www.NortheastBirding.com/NYSbirdsSubscribeConfigurationLeave.htm ARCHIVES: 1) http://www.mail-archive.com/[email protected]/maillist.html 2) http://www.surfbirds.com/birdingmail/Group/NYSBirds-L 3) http://birdingonthe.net/mailinglists/NYSB.html Please submit your observations to eBird: http://ebird.org/content/ebird/ -- -- NYSbirds-L List Info: http://www.NortheastBirding.com/NYSbirdsWELCOME http://www.NortheastBirding.com/NYSbirdsRULES http://www.NortheastBirding.com/NYSbirdsSubscribeConfigurationLeave.htm ARCHIVES: 1) http://www.mail-archive.com/[email protected]/maillist.html 2) http://www.surfbirds.com/birdingmail/Group/NYSBirds-L 3) http://birdingonthe.net/mailinglists/NYSB.html Please submit your observations to eBird: http://ebird.org/content/ebird/ -- ________________________________ Change is in the Air - Smoking in Designated Areas Only as of July 1, 2011<http://www.csi.cuny.edu/tobaccofree> -- NYSbirds-L List Info: http://www.NortheastBirding.com/NYSbirdsWELCOME http://www.NortheastBirding.com/NYSbirdsRULES http://www.NortheastBirding.com/NYSbirdsSubscribeConfigurationLeave.htm ARCHIVES: 1) http://www.mail-archive.com/[email protected]/maillist.html 2) http://www.surfbirds.com/birdingmail/Group/NYSBirds-L 3) http://birdingonthe.net/mailinglists/NYSB.html Please submit your observations to eBird: http://ebird.org/content/ebird/ --
