Dan: As you are well aware, lots of species are separable by call mainly or only. Per the 6th, 2011, edition of the National Geographic field guide the best way to separate Fish Crow from other species of crows is by call. Cornell University http://www.allaboutbirds.org/guide/search has calls for both American Crow and Fish Crow; Xeno-Canto http://www.xeno-canto.org/ has even more calls for both. This particular conundrum is reason for folks to carry audio recording equipment in the field.
Onward! Steve Stevan Hawkins San Antonio TX -----Original Message----- From: Minnesota Birds [mailto:MOU-NET@LISTS.UMN.EDU] On Behalf Of dan&erika Sent: Monday, November 07, 2011 9:19 AM To: MOU-NET@LISTS.UMN.EDU Subject: [mou-net] Fish Crows in Minneapolis???? Hi All-- Working on my blog, I serendipitously wrote a post today about the Fish Crow. ( http://dantallmansbirdblog.blogspot.com ) Come to discover that Fish Crows are found up the Mississippi Valley to St. Louis and accidentally into southern Ontario! Fish Crows are moving north. Twice this fall I saw or heard odd crows. One was noticeably small but not obviously young. Another time I heard crows call like a Fish Crow--this was in Updown near 47th street or so. At the time, not knowing that a Fish Crow was remotely possible, I wrote the calls off as off-pitch American Crows. No way I am listing these! But we should be on the alert. The two species are so similar, I am somewhat puzzled as to how one would tell them apart here in Minnesota. I have Fish and American crow calls on the blog. dan -- Dan or Erika Tallman Northfield, Minnesota http://sites.google.com/site/tallmanorum http://dantallmansbirdblog.blogspot.com http://picasaweb.google.com/danerika daner...@gmail.com ".... the best shod travel with wet feet" "Beware of all enterprises that require new clothes ...."--Thoreau ---- Join or Leave mou-net: http://lists.umn.edu/cgi-bin/wa?SUBED1=mou-net Archives: http://lists.umn.edu/archives/mou-net.html ---- Join or Leave mou-net: http://lists.umn.edu/cgi-bin/wa?SUBED1=mou-net Archives: http://lists.umn.edu/archives/mou-net.html