MNIOTILTID.E: AMERICAN WARBLERS. 315 



fornia and W. Mexico : E. in migration to the Rocky Mts. ; breeding range from S. Cala. to 

 S. Alaska. Nest normally on ground, sometimes 3-6 feet up in a shrub or vine, built of 

 leaves, grass, and hair ; eggs laid in May and June, not peculiar. 



H. c. sor'dida. (Lat., sordid, soiled, stained.) Dusky Orange-crowned Warbler. 

 Diflcrs in being more darkly colored ; "there is an appearance of grayness about the upper 

 plumage, owing to a leaden tinge on ends of feathers. Throat and under parts slightly 

 streaked." San Clemente, Santa Rosa, and Santa Cruz Islands, off California. Neither this 

 nor the last-named variety amounts to much, and both have been recognized mainly upon geo- 

 graphical considerations. TowNS., Pr. U. S. Nat. Mus., xiii, 1890, p. 139; A. 0. U. List, 

 2d ed., 1895, No. 646 ft. 



H. peregri'na. (Lat. per eg rina, wandering, alien, foreign ; i. e., migratory. Fig. 171.) Ten- 

 nessee Warbler. Adult ^ : Upper parts yellowish-olive, brightest posteriorly ; on fore parts 

 and head changing to pure ash, without any greenish tint whatever. No crown-patch of any 

 different color. Lores, eye-ring, or frequently a decided 

 superciliary stripe, whitish. Entire under parts dull white, 

 scarcely or not tinged with yellowish. Wings and tail 

 dusky, strongly edged with color of back ; outer tail-feath- 

 ers frequently with an obscure whitish spot. Bill and feet 

 dark. Length 4.50-4.7.5, rarely 5.00 ; extent 7.50-8.00 ; 

 wing about 2.75, thus long for the size of the bird, and es- \. 



l)ecially in comparison with the short tail, pointed, with ^*^.; 



little difference in length between the first 3 or 4 quills; "" 



tail only 2.00 or less, thus remarkably short — the com- ; -\ 



parative length of wings and tail, with other characters, ^~"->-. 



probably always distinguishes the species from the fore- Fio. 17L — Tennessee WarWer. (L. a 



going. Adult 9 '■ Quite like <^, but ashy of head less pure 



and clear, and under parts more or less tinged with greenish-yellow. Young : Entire upper 

 parts strongly and uniformly yellowish-olive, like rump of adult <J, or even brighter, this color 

 also tingeing eye-ring and superciliary stripe. Under parts as in adult 9 , or more decidedly 

 greenish-yellow, leaving only belly and crissum whitish. In this condition specimens more 

 closely resemble some other species than when adult ; but the short tail, long wings, and no 

 crown-patch should be distinctive. Chiefly Eastern N. Am., but W. to the Rocky Mts. ; 

 common, especially in the Mississippi Valley, but less so in the Atlantic States; migratory; 

 breeds in N. New England and northern tier of States, and thence to high latitudes in British 

 America; winters S. through E. Mexico to Central Amer. and the U. S. of Colombia. Nest 

 and eggs as in other species of the genus. 



DKNDIICE'CA. (Gr. fi€v8pov, dendron, a tree, and otVew, oikeo, I inhabit.) Wood War- 

 blers. Bill variable in shape, usually conico-attenuate, more or less depressed at base, com- 

 ])ress('d from tlie middle, notched near tip, not showing the extreme acuteuess of that of 

 Jlelmitherns, Helinaia, Hehninthophila, and Protonotaria (except in the subgenus Perisso- 

 glossn). Rictus with obvious bristles, which are not evident in the true "worm-eating" 

 warblers. Tarsus longer than middle toe and claw (it is shorter, or not longer, in 3Tmotilta). 

 Ilind toe little if any longer than its claw (decidedly longer in Mniotilta and Compsothlypis). 

 Wings much longer than tail, pointed, 1st and 2d jirimarics longest. Tail moderate, with 

 ratlier broad feathers, nearly even, but varying to slightly rounded, or with slight central 

 «margination. Pattern of coloration indeterminate. Tail always with white blotches (except 

 in ccstiva and its immediate allies, where the inner webs are yellow), never plain olivaceous. 

 Crown never with lateral black stripes, nor under parts uniformly streaked with blackish on a 

 pale ground, nor back with a yellow patch, nor whole head yellow. Length usually 5.00- 

 ■ti.OO ; rarely under and perhaps never over these dimensions. Nest in bushes or trees, with 



