B.5. 25967. Colony of Frigatq 
Birds. Necker Island. 
June 19, 1923. 
V 
B.S. 25970. Male Frigate Birds- 
with throat sac inflated. Bird on 
left is past breeding and sac has 
begun to shrink. Laysan Island. 
May 2, 1923 . 
k 
B.S. 25968. Colony of Frigate 
Birds. Laysand Island. 
May 3 , 1923. 
