GOLDEN-CHEEKED WARBLER 163 



Between this plumage in which the back is streaked with olive-green and the 

 black of throat or breast tipped with yellowish or whitish and that in which 

 the back and breast are solidly jet black, there is, in Spring specimens, every 

 degree of intergradation, probably in part due to individual variation, but it 

 seems unlikely that the jet black back is acquired before the first post-breeding 

 molt. 



Adult S, Spring. — Above olive-green, both crown and back streaked with 

 black; a partly concealed median frontal streak; a broad yellow line from 

 bill over eye ; cheeks and sides of neck yellow, a dusky transocular streak which 

 sometimes extends backward and upward to the nape; tail with less white than 

 in c?, wings as in <? but grayer; chin and throat yellow with more or less 

 blackish intermixed; upper breast black more or less tipped or mottled with 

 whitish extending into black streaks on the sides ; lower breast and belly white. 

 Like young <$ in Fall but with less black above and on throat. 



Adult 2, Fall.— Not seen. 



Young ?, Fall. — Similar to adult ? in Spring but with few or no streaks 

 above, the yellow of the sides of the head duller and more restricted ; the throat 

 white with little or no yellow; the breast dusky, the feathers basally more or 

 less blackish; sides less heavily streaked with black and with a brownish wash. 

 Resembles Black-throated Green ? in Fall, but lacks yellow wash below. 



Nestling. — Above dusky brownish gray, a faintly suggested grayish super- 

 ciliary line; below grayish the throat and breast grayer, the sides and belly 

 whiter, the former obscurely streaked with dusky, wing-coverts brownish gray 

 narrowly tipped with whitish. 



General Distribution. — Central Texas southward. 



Summer Range. — South Central Texas. (See Attwater's remarks 

 beyond.) 



Winter Range. — Southern Mexico and Guatemala. 



Spring Migration. — Its arrival near San Antonio, Texas, was 

 noted March 13, 1895; March 10, 1896; March 9, 1897; March 13, 

 1898; March 14, 1900; March 16, 1903; March 15, 1904; March 16, 

 1905; average March 13. 



The Bird and its Haunts. — The limited range of the Golden- 

 cheeked Warbler has given few ornithologists the privilege of study- 

 ing it. Mr. H. P. Attwater, of Texas, when living at San Antonio, 

 near this bird's summer home, took advantage of this opportunity to 

 study its habits with such satisfactory results that, thanks to his efforts, 

 we have a more complete biography of this bird than of many com- 

 moner, more widely distributed species. The following observations 

 were prepared by Mr. Attwater for use in the present connection : 



"The summer home of the Golden-cheeked Warbler in the United 

 States is confined to certain portions of the counties in south-central 

 Texas, embraced in the timbered parts of the 'Edwards Plateau' 

 region. Throughout this region numerous valleys and deep canons, 



