[CT Birds] Aging and sexing Snowy Owls

Mntncougar at aol.com Mntncougar at aol.com
Sat Dec 14 11:18:14 EST 2013


This was borrowed from Jerry Jourdan's blog.
From:
 Bertie Josephson: Article in Journal of Field Ornithology (1980) 
 
Don Morgan
Coventry
 
 



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