Identification of Slaty-backed Gull Larus schistisagus: a North American Perspective

 

sbgu_feb16_2015 First-winter Slaty-backed Gull Larus schistisagus, Busan, February 16th 2015 © Nial Moores

For those who are really into the wonderful world of gulls and gull identification, the following paper in Birding on Slaty-backed Gulls might be of some interest:

http://www.birdpop.org/DownloadDocuments/McKee+Pyle+Moores-2014-SlatyBacked-Gull-plumages-Birding.pdf

 

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.