OF XKW YORK 



Memoir 12. N. y. State Museum 



GYRFALCON 



Falco rusltcnlut ayrfnlco Linna 



WHITE GYRFALCON 

 ralco iHlandus Brunnich 



BLA 1 ?i K . GYF)FALCON Fn ' c *ieol>u obsoletu, Gmelin 

 AII j nat. si zf* 



