THE BIRD BOOK 
GANNETS. Family SULIDAE 
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Gannets are large stoutly built birds, having the four toes joined by a web; 
they have a small naked pouch beneath the bill; the bill is a little longer than 
the head, and the tail is quite short. The plumage of the adults is generally 
white, that of the young grayish. 
114. Blue-faced Booby. Sula syanops . 
Range. — Widely distributed in the tropical seas, 
north casually to Florida and breeding in the Ba- 
hamas. 
Like the rest of the Gannets, this one is stupid 
and will often remain on the nest until removed 
with the hand, merely hissing at the intruder. 
Often they lay their eggs on the bare ground, but 
sometimes the nest is lined with seaweed or grass. 
They lay either one or two eggs early in April. 
These eggs are of a dull white color and are heav- 
ily covered with a chalky deposit. Size 2.50 x 1.70. 
Data. — Clarion Is., Mexico, May 24, 1897. Nest 
a mere hollow in the sand near the beach. Col- 
lector, A. W. Anthony. 
114.1. Blue-footed Booby. Sula nebouxi. 
Range. — Pacific coasts and islands from the 
Gulf of California southward to Chili. 
These birds nest in numbers on the island of 
San Pedro Martir in the Gulf of California. They 
lay but a single egg, placing it upon the bare 
rock. Their breeding season extends from the 
latter part of March into May. The egg is a dull 
white, generally nest stained and is covered with 
the usual chalky deposit. Size 2.35 x 1.60. Data. 
— Clarion Island, Mexico, May 21, 1897. Two eggs 
in a hollow in the sand near the beach. Collector, 
A. W. Anthony. 
Blue-faced Booby 
Blue-footed Booby 
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