50 PETRELS, SHEARWATERS, ETC. 



The downy young are dusky brown 

 above and lighter beneath, fig. 29. The nests 

 are placed in cavities of rocks, beneath loose 

 slabs, in caves, and sometimes in the shelter 

 of creeping vines. The eggs are deposited 

 from March 15th to April loth. 



Flight, swift and direct in the daytime 

 but more erratic by night, when the birds 

 visit their breeding grounds. 



Cries, when the birds are annoyed, harsh 

 and discordant; the breeding notes, given on- 

 ly in the night, are mellow and musical. 

 They are uttered in a minor tone when the 

 bird is flying, like^'que-ar-a-var", accented on 

 the second and final sylables, but mainly on 

 the second, with the last prolonged. 



Excepting when nesting, occurs far out 

 on the open ocean, and even when breeding, 

 is seldom seen within sight of land in the day 

 time, visiting its nest in the night only. 

 Audubon Shearwater is found in the warmer 

 portions of the Atlantic Ocean. Breeds on the 



