THE BIRD BOOK 
Elegant Tern 
Cabot’s Tern 
67- Cabot Tern. Sterna sandvicensis 
acuflavida. 
Range. — A tropical species breeding regularly 
north to the Bahamas and Florida; casually 
farther north. A beautiful bird distinguished 
from the three preceding ones by its smaller size 
(sixteen inches) and by the bill which is black 
Cream color 
with a yellow tip. They nest in colonies on the 
shores of islands in the West Indies and Baha- 
mas, but not to a great extent on the United States 
Coast. Their two or three eggs have a creamy 
ground color, and are boldly marked with brown 
and black. Size 2.10 x 1.40. 
[68.] Trudeau’s Tern. Sterna trudeaui. 
Range.- — South America; accidentally along the coast of the United States. 
A rare and unique species with a form similar to the following, but with the 
coloration entirely different. About fifteen inches in length; tail long and 
deeply forked; bill yellow with a band of black about the middle. Whole head 
pure white, shading into the pearly color of the upper and under parts. A 
narrow band of black through the eye and over the ear coverts. A very rare 
species that is supposed to breed in southern South America. Given a place 
among North American birds on the strength of a specimen seen by Audubon 
off Long Island. 
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