202 KEY TO THE WATER BIRDS OF FLORIDA. 
PUFFINUS AUDUBONI  § Zinsch. 
Audubon’s Shearwater. 
Adult: Above glossy brown, shading into grayish on the 
sides of the breast; below white; crissum brown and white; 
tail brown, the feathers tipped with ashy ; bill plumbeous. 
Length, 11.50; Wing, 8; Bill, 1.20; Tarsus, 1.55. 
Occurs on the Atlantic coast from Florida to New Jersey ; 
very common in the Bahama Islands, where it breeds; nest 
in holes in the rocks, where the bird lays a single chalky 
white egg. 
GENUS FESTRELATA Bonap. 
AESTRELATA HASITATA (Kui). 
Black-capped Petrel. 
Adult : Head white; crown black; upper parts except upper tail coverts dusky ; under parts 
white ; sides of the chest sometimes gray. Upper and under tail coverts white. 
Length, 16.50; Wing, 12; Bill, 1.35; Tarsus, 1.40. 
An Atlantic species rarely found near the coast. It has been taken in 
«* Florida and on Long Island.” (Ridgway, Man. NV. A. Birds, p. 66.) 
