Thanks for pointing out the color distinctions. As a normal human being, I am willing to change my ID to three brights and one tan. And I think a little research is on my agenda.
Bill McAneny -----Original Message----- From: bounce-86348349-7495...@list.cornell.edu [mailto:bounce-86348349-7495...@list.cornell.edu] On Behalf Of Suan Hsi Yong Sent: Monday, April 29, 2013 7:10 PM Cc: CAYUGABIRDS-L Subject: Re: [cayugabirds-l] WTS FYI, white-throated sparrows are not sexually dimorphic -- meaning a normal human can't tell male from female in the field. But they do have two morphs -- bright-striped and tan-striped -- with an interesting "cross-preference" relationship (see http://www.allaboutbirds.org/guide/white-throated_sparrow/lifehistory). Actually, as I scroll through my Sibley's, it would seem that nearly all Emberizine sparrows are sexually monomorphic (exceptions include juncos and lark buntings). Someone more expert should correct me if I'm wrong. Suan -- Cayugabirds-L List Info: http://www.NortheastBirding.com/CayugabirdsWELCOME http://www.NortheastBirding.com/CayugabirdsRULES http://www.NortheastBirding.com/CayugabirdsSubscribeConfigurationLeave.htm ARCHIVES: 1) http://www.mail-archive.com/cayugabirds-l@cornell.edu/maillist.html 2) http://www.surfbirds.com/birdingmail/Group/Cayugabirds 3) http://birdingonthe.net/mailinglists/CAYU.html Please submit your observations to eBird: http://ebird.org/content/ebird/ -- -- Cayugabirds-L List Info: http://www.NortheastBirding.com/CayugabirdsWELCOME http://www.NortheastBirding.com/CayugabirdsRULES http://www.NortheastBirding.com/CayugabirdsSubscribeConfigurationLeave.htm ARCHIVES: 1) http://www.mail-archive.com/cayugabirds-l@cornell.edu/maillist.html 2) http://www.surfbirds.com/birdingmail/Group/Cayugabirds 3) http://birdingonthe.net/mailinglists/CAYU.html Please submit your observations to eBird: http://ebird.org/content/ebird/ --
