MNIOTILTID.E: AMERICAN WARBLERS. 



335 



Analysis of Species. 

 Wing much longer than tail, pointed, 1st quill longest or nearly so [Subgenus Opobobkis). 



Head with black ; line over eye and all under parts rich yellow in jf $ formosa 



Head without black or yellow ; crorni, throat, and breast ashy in (f; a white eye-ring agilis 



Wing not longer than tail, rounded, 1st quill not nearly longest [Subgenus Geothlypis). 

 Sexes nearly alike : head and throat ashy, deepening on breast. 



No white eyelids ; breast of adult cf quite blackish Philadelphia 



White eyelids ; breast of adult cf scarcely different from throat tolmiei 



Sexes quite unlike, cf with black and ash or yellow on head ; 9 with head plain. 

 Black mask involving front and sides of head. 



Mask bordered vrith hoary ash ; throat and breast only yellow trichas 



Mask bordered witli yellow ; under parts all yellow beldingi 



Black on sides of head only ; top of head ash ; eyelids white {Subgenus Chaslethlypis) poliocephala ralphi 



(Subgenus Opororkis.) 

 G. (O.) formo'sa. (Lat. /onwosa, shapely, comely; hence, beautiful iu auy way. Fig. 191.) 

 Kentucky Warbler. Adult ^ 9 : Clear olive-green ; entire under parts pure bright yellow, 

 olive-shaded along sides ; crown black, the featliers more or less 

 skirted with ashy, separated by a rich yellow superciliary line 

 (which curls around eye behind) from a broad black bar running 

 from bill below eye and thence down side of neck ; wings and tail 

 unmarked, glossed with olive; feet flesh-color. Length 5.50- 

 6.75 ; extent about 9.25 ; wing 2.75-3.00 ; tail 2.00-2.25 ; tar- 

 sus 0.85. In the fall, the black of head and neck is much 

 overlaid by ashy or grayish tips of the feathers ; the yellow of 

 under parts is paler, and more shaded with olivaceous along ^ ' 

 sides. Young birds lack the black and yellow of head ; the Fio. 191. — Kentucky Warbler, 



under parts are much duller, and the upper parts have a brown- "^*- ^'^®- ^^^- "**• ^^^- ^- ^'^ 

 ish cast; at a very early age the wing-coverts are tipped with buff. Eastern U. S., N. to the 

 Connecticut Valley, Michigan, etc., and rarely to Quebec; W. to the Plains; not abundant. 



Not abundant at large, but very 

 common in certain sections, as 

 in Illinois, Kansas, and other 

 portions of the Mississippi Val- 

 ley. Breeds throughout its U. S. 

 range; winters extralimital, iu 

 ^^^^^^^^^^^^^ .^^^^^^ some of the West Indies, parts 



^^^^^^^^^^^- ^^^^" of Mexico, and S. to Panama. 

 A beautiful object, gleaming like 

 gold in the tangle and debris of 

 thick dark woods and swamps. 

 Nest on the ground, or in rub- 

 bish near it, of leaves, grasses, 

 weed-stems and rootlets, large 

 and shallow ; eggs 4-5, 0.70 X 

 0.56, crystal-white, sprinkled 

 with spots and dots of reddish, 

 brownish, and neutral tint. 

 fthf'^^^ G. (O.) a'gilis. (Lat. agUis, 



^ ,«o r- .• . ,.- v., ai^ile* active. Fig. 192.) CoN- 



Fio. 192. — Connecticut W arbler. & > o ^ 



NECTicuT Warbler. Adult (J: 

 Olive-green, becoming ashy on head; below, from the breast, yellow, olive-shaded on sides; 

 ciiin, throat, and breast dark ash; a white ring around eye; wings and tail unmarked, glossed 



