152 PATAGONIAN EXPEDITIONS: ZOOLOGY. 



Under parts white, except the upper throat and chin which are dusky 

 black. The under tail coverts and some feathers on the sides of breast 

 and neck, tipped with black. 



Bill deep black. 



Iris brown. 



Legs and feet black. 



"Male: off Tres Montes, May 10, 1879. Iris dark brown; bill and 

 legs black; eyelids black; male: off St. Ambrose, July 20, 1879. Iris 

 dark grey." (Sharpe, P. Z. S. 1881, p. 12.) 



Geographical Range. — Southern Oceans in general, north to Ceylon, 

 and regularly to latitude 5° south on the Pacific Coast of America. Cas- 

 ually to the coast of California. On the Atlantic coast of America north 

 to about latitude 30° south. 



The Cape Pigeon was not obtained by the Princeton Expeditions to 

 Patagonia, though observed generally off the coast. The description is 

 based on material in the Philadelphia Academy of Natural Sciences, the 

 American Museum of Natural History in New York, and in the British 

 Museum. 



These petrels are known to breed on Tristan da Cunha (Moseley, Notes 

 Nat. "Chall," p. 134, 1879) and at Heard Island the same naturalist 

 found the Cape Pigeons breeding in holes or burrows, in low basaltic 

 cliffs, February, 1874. (Moseley, op. cit, p. 229.) 



Darwin writes of the Cape Pigeon : " This petrel is extremely numerous 

 over the whole southern ocean, south of the Tropic of Capricorn. On the 

 coast, however, of Peru, I saw them in lat. from 16° to 17° S., which is 

 considerably farther north than they are found on the shores of Brazil. 

 Cook in sailing south in the meridian of New Zealand, first met this bird 

 in lat. 43°3o'. The Pintados slightly differ in some of their habits from the 

 rest of their congeners, but, perhaps, approach nearest in this respect to 

 P. glacialoides. They are very tame and sociable, and follow vessels 

 navigating these seas for many days together ; when the ship is becalmed 

 or moving slowly, they often alight on the surface of the water, and in 

 doing this they expand their tails like a fan. I think they always take 

 their food when thus swimming." (Voy. H. M. S. "Beagle" Birds, II. 

 Gould, p. 140; 1 84 1.) 



