177 
1921 .] Recently published Ornithological Works. 
second voyage, as the species now known as Pterodroma 
parvirostris (Peale) from Christmas Island of the Fanning 
group. Mr. W. E, Clyde Todd monographs the South 
American Crested Quails of the genus Eupsychortyx , and 
illustrates their distinctive characters by a coloured plate 
and their distribution by two maps. Dr. J. Dwight, who 
has long been engaged in the study of moult and change of 
plumage, has an interesting and instructive article on the 
Gulls. He believes that the smaller gulls attain their adult 
dress in the second year, while in the largest forms this 
process is prolonged until the fourth year. He also points 
out that younger birds can be detected by the more pointed 
shape of the primaries and by the more rounded ends of the 
tail-feathers. The successive plumages of Larus Philadelphia 
and L. argentatus are described at length and illustrated on 
five carefully drawn plates. The question of the distinctive 
characters of the Common and Barrow’s Golden-eye are 
discussed at length by Mr. Allan Brooks, as well as some 
other points in regard to the ducks of British Columbia ; 
his remarks are illustrated by some fascinating drawings 
from his own brush. 
The Killdeer Plover (Oxyechus vociferus), a common 
North-American bird, has long been known to range to 
South America, but was supposed to go there only during 
the winter months as a migrant. Recently Mr. Harry 
Watkins, who has been collecting for the American Museum 
in New York, has sent to Mr. Chapman fourteen examples 
of the Killdeer which he found breeding on the coast of 
Peru. The bird turns out to be separable from the North- 
American one, and is named Oxyechus vociferus peruvianus 
by Mr. Chapman. 
Another new bird described is a duck of the Mallard 
group found in New Mexico and named by Mr. W. Huber 
Anas 7LOvimexicana. 
Of the faunal papers, Mr. S. Cobb writes on the birds of 
the Catskill Mountains in New York, Mr. L. Griscom on 
those of Texas, and Mr. F. C. Lincoln on Colorado birds, 
Messrs. Fleming & Lloyd on Ontario birds, and Mr.Wetmore 
SER. XI.-VOL. III. 
N 
