[cobirds] A review of gull pages: Sibley 2nd ed.

Lariphile Amar Ayyash offers this review of the gull plates etc. in the 2nd ed. Sibley guide.

http://www.anythinglarus.com/2014/03/review-of-sibleys-2nd-edition-gull.html

Enjoy,

Scott E. Severs
Longmont, CO

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