The people who examine crows at the University of Washington say there are no Northwestern Crows in Washington. They have not been able to find any Crows in Washington with the correct measurements. North of the Frasier River in British Columbia they are all Northwesterns except for one area in Alaska where the American Crows get to the salt water.
If anyone else knows otherwise, please expound and quote your sources.
Bob Norton
norton36 at olypen.com
Joyce (near Port Angeles), WA
----- Original Message -----
From: Jon Leland
To: tweeters at u.washington.edu
Sent: Monday, December 21, 2009 1:04 PM
Subject: [Tweeters] NW vs AM Crow


Hi all:

For those you listers, I am curious how you handle ID and tracking for American vs Northwestern Crow. The resources I have consulted suggest that it is impossible to tell the difference other than range. Do you just count it as NW Crow when youre on the Pacific Coast and AM crow the rest of the time? I use eBird to track my sightings, and am a little amused that they even offer "American/NW Crow hybrid" as a common species.

Regards
Jon Leland
Seattle WA






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