584 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



xvi, 1894, 777 (Cuernavaca, Mofelos, Sept. 4) .—TJlrey and Wallace, Proc. 

 Ind. Ac. Soc, 1895, 157 ("Wabash, Indiana, migratory) .—Beyer, Proc. Loui- 

 siana Soc. Nat. for 1897-99 (1900), 113 (Louisiana, breeding). 



JUiendroica] dominica albilora Ridgway, Man. N. Am. Birds, 1887, 504.— Wood 

 (J.C), Auk, xvii, 1900, 391 (Detroit, Michigan, breeding). 



[Dendrceca dominica'] a. D. albilora Shabpe, Cat. Birds Brit. Mus., x, 1885, 304, 

 648 (Mazatlan; Progreso, n. Yucatan; Belize, British Honduras, etc.). 



DENDRIOCA GFACI/E GRACI^ Baird. 

 GRACE'S WARBLER. 



Resembling D. dominica, but much smaller, with superciliary stripe 

 mostly yellow, sides of neck gray instead of white, no black patch on 

 side of head, and back streaked with black. 



Adult male in spring and summer. — Above slate-gray, the crown 

 and back streaked with black (sides of crown sometimes uniformly 

 black); wings and tail dusky with slate-gray edgings, the middle 

 wing-coverts broadly, the greater coverts more narrowly, tipped with 

 white, forming two distinct wing-bands; two outermost rectrices with 

 inner webs extensively white terminally (the white occupying more 

 than terminal half on outermost rectrix, which also has the outer web 

 largely white), the third rectrix also usually with a white terminal or 

 subterminal elongated patch; a superciliary stripe of yellow, passing 

 into white beyond eye; a broad dusky loral streak and a narrow dusky 

 rictal streak; auricular region and sides of neck plain slate-gray; sub- 

 orbital spot, malar region, chin, throat, and chest lemon yellow; remain- 

 ing under parts white, with sides of chest and breast, sides, and flanks 

 streaked with black; bill black, the mandible more brownish basally; 

 iris brown; legs and feet dusky brown (in dried skins). 



Adult {1) male in autumn and winter. — Similar to the spring and 

 summer plumage, but gray of upper parts slightly tinged with brown, 

 especially on back, where the black streaks are more or less concealed; 

 white of under parts tinged with pale brownish bufll'y, especially on 

 flanks. 



Young male in first autumn and whiter. — Similar to the supposed 

 adult male of corresponding season, but upper parts more strongly 

 tinged with brown, with black streaks on back entirely concealed, and 

 flanks more strongly tinged with brownish buff. 



Adult female in spring and summer. — Similar to the adult male of 

 corresponding season, but duller in -color; gray of upper parts strongly 

 tinged with brown, the black streaks on back indistinct (sometimes 

 obsolete); white wing-bands narrower; yellow of superciliary stripe, 

 throat, etc., paler; white of under parts rather duller, and blackish 

 streaks on sides, etc. , less distinct. 



Adult {^femMle in autumn and winter'. — Gray of upper parts over- 

 laid by a wash of olive-brownish, the black streaks on back very nar- 



