posted April 13th, 2011; last edited April 13th, 2011 –– David Sibley

Updated List of Identifiable Subspecies

I’ve just updated the list of field identifiable subspecies incorporating several readers’ comments, adding notes on several species, and adding an asterisk to highlight the most distinctive subspecies (as determined by my own subjective and arbitrary review process). Thanks to all who have contributed. Please keep sending suggestions and comments.

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