ORANGE-CROWNED WARBLER. 
303 
rous errrors have been introduced in the pages of ornithologi- 
cal works. 
ORANGE-CROWNED WARBLER.— SYLVIA CELATA. 
Plate V. Fig. 2. 
Sylvia celata, Say, in Long's Expedition to the Rocky Mountains, i. p. 169. — ■ 
Philadelphia Museum, No. 7013. 
VERMIVORA? CEl,ATA.—3xvir)mE. 
Sylvia celata, Ronap. Synop. p. 88. 
This little bird, discovered, early in May, at Engineer Can- 
tonment, on the Missouri river, was first described and named 
by Say ; the species was not uncommon at that season, and 
appeared to be on its passage farther north. It is more parti- 
cularly interesting, inasmuch as it enriches the Fauna of the 
United States with another species of the small subgenus 
Dacnis, which may be ascertained by inspecting the bill, re- 
presented in the annexed plate. 
The orange-crowned warbler is full five inches long, and 
seven in extent. The bill is dark horn colour, slender, straight, 
entire, and tapering to an acute point ; the base of the inferior 
mandible is whitish beneath; the legs are dusky; the irides 
dark brown. The general plumage above is dull greenish 
olive, the rump and tail-coverts being bright yellowish olive. 
The head is very slightly and inconspicuously crested ; the 
feathers of the crest are orange at base, constituting a spot on 
the crown, visible only when they are elevated, being tipped 
with the common colour. The whole bird beneath is dull 
olive yellow ; the inferior tail-coverts are pure yellow. The 
v/ings are destitute of spots or bands ; the primaries are dark 
brown, olive green on the exterior margin, which is much 
paler on the outer ones ; the interior margin is whitish ; the 
four outer primaries are subequal ; the fifth is but very little 
shorter. The tail is even, the feathers being dark brown, 
