Birds. 3693 



few dark feathers on the flanks. The back and shoulders are covered 



The Capped Petrel (Procellaria hcesitata), one-sixteenth of the natural size. 



Head of the Capped Petrel, (natural size). 



with brownish gray and blackish brown feathers, the former appearing 

 to have been but lately assumed, but many of the latter are " sedgy " 



