BIRDS OF N E ^V YORK 



Memoir 12. N. Y. State Musei 



Plate 9 



^iiH C^ariir T^Ujtrie^ 



COMMON JORMORANT I 'iKthieriicora.f curlid (Linnaeus) 



AUULT IK BKEtDINQ PLUMAlib IMMATURE 



DOUBLE-CRESTED CORMORANT Phoiacrocorox (lUriftls (liCSSon) 



ADULT IN BREEDING PLUMAGE IMMATURE 



GANNET Sula iKissaiia (Linnaeus) 



ADULT IMMATURE 



Alt e nut. size 



