20.4 REPTILES AND BIRDS. 
cristatus, Fig. 81), about the size of a duck, ornamented with a 
double black crest ; the Horned Grebe (P. cornutus), provided with 
two long tufts of feathers, in form somewhat resembling a horn ; the 
Eared Grebe (2. auritus), distinguished by its beak, the base of 
which is depressed, while the point is raised upwards. Among the 
American species may be mentioned /. carolinensis and P. rubri- 
collis, killed at the Great Slave Lake, associated with P. crzstatus and 
P. cornutus. LP. chilensis and P. americanus are natives of the 
warmer parts of America, of St. Thomas, St. Domingo, and the 
Philippines. 
Fig. 81.—The Crested — 
THE CRESTED GREBE (Podiceps cristatus). 
As a representative of the family the Crested Grebe had better be 
taken. It is found along our coasts and in their estuaries, in limited 
numbers; but in the splendid lakes of the North American fur 
countries, according to Dr. Richardson, this species is very abundant. 
Mr. Audubon says that it returns to the United States from its 
northern wanderings about the beginning of September, and proceeds 
south as far as Mexico, a few stragglers only remaining on the lower 
part of the Ohio, Mississippi, and the neighbouring lakes. “They 
pass swiftly through the air,” says this enthusiastic naturalist, “at the 
height of about a hundred yards, in flocks of from seven and eight 
to fifty or more, proceeding in a loose body, and propelling them- 
selves by continual flappings, their necks and feet stretched out to 
