AVES SPHENISCID/E. 



95 



Fig. 57. 



Fig. 58. 



Pygoscclis antarctica. Profile licad and 

 neck, y^ natural size. 



Pygoscclis antarctica. Head from above. 

 ^ natural size. 



General description. 



Size (adult). — Total length, about 30 inches. Culmen (gape to tip), 

 2.65 inches. Culmen (from nasal feathers to tip), 1.4 inches. Wing 

 (from shoulder to tip), 7.5 inches. 



Coloy (adult). — Upper parts much as in P. papna but brighter, the tips 

 of the feathers being of a lighter tint. 



Lower parts generally white. 



Head : Top of the head of the same bluish grey prevailing on the upper 

 parts, this color reaching to the nasal feathering, interrupted by white 

 lores and a white band over each eye. 



Neck : Above like the back ; below and on the sides white, broken by 

 a narrow black line crossing the throat in a semi-circle from ear to ear. 



Back : Bluish-grey ; each feather with a dark base and a bluish grey 

 tip. 



Wing: (Flipper). Outer surface bluish grey like the back; edged 

 posteriorly with white. Inner surface white, with a blackish outer margin 

 and a blackish terminal spot. 



Tail : Colored like back and composed of twelve feathers. 



Under parts : White. 



In worn plumage the adult bird becomes brownish black above by the 

 wearing off of the blue-grey margins to the feathers. 



Young birds have their tail composed of fourteen feathers. The outer 

 one on each side is shed at the first moult and not replaced. 



