50 PACIFIC COAST AVIFAUNA No. 15 



cided falling off in their numbers, and after April 10, none were noted until 

 May 3, when two were seen on an ocotillo. At Rosemont, Jaiuiary 15, 192:^, 

 Taylor repoi'ted them, "probably pretty eoimnon all tlu-ou^h this oak eoun- 

 try." 



Dendroica graciae. (J race Warbler 



Taken August 1 and 12, 1918, by Howell and found "fairly common, usu- 

 ally with flocks of other warblers and tits in Transition zone." Three or four 

 were seen by Bailey, April 1"), li)21, at about 4.000 feet at the upper edge of 

 the Lower Sonoran zone. 



Dendroica nigrescens. iJlack-throatt'd (Iray \Vai'l>ler 



Taken by llenshaw, August 25 and 2G, 1S74, at ('aiiij* Crittenden; and by 

 Stei)hens, May 12, 1881; twelve adults were taken by Xclson, June 15-July 5; 

 and three juveniles, July 1, 5, and 8, 1884, at Gardner's Ranch. They were 

 found by Swarth the latter half of June, 1903, "quite common everywhere in 

 the oak brush," and reported by Howell, July 28-August 15, 1918, in Madera 

 Canyon, ' ' next to the commonest warbler ; in Upper Sonoran and Transition. 

 Occurs either alone or with flocks of other small birds." Adults were taken, 

 August 1-12; iramatures, August 1, 10, and 12, 1918. Several were seen by us 

 in the mesquites, March 21, 1921, and they were quite common during most 

 of April, being frequently seen in the live oaks of the ranch. The last re- 

 corded was apparently a fenmle, seen on May 4, two days before we left the 

 mountains. The black and white head markings of this warbler make an 

 excellent field character as he looks up and turns his head over. Occasion- 

 ally he drops down through the branches, when liis white tail shears show 

 to especial advantage. He was seen hunting assiduously in both mes([uites 

 and live oaks. 



Dendroica townsendi. Townsend Waibler 



Taken by Stephens, May 13, 1881, in the oaks of the footliills. In- 

 dividuals were seen by us, April 29 and May 2, 1921, in mesquites, and one 

 May 4, in a live oak, at the ranch. 



Dendroica occidentalis. Hermit Warbler 



Majiy were seen and both adult and iniituiture tak'en by Howell, August 

 12, 1918, from 6-500-7,500 feet, in flocks of other small birds. Individuals 

 were seen by me, April 22, 29, and 30, and May 1, 1921, in the mesquites and 

 live oaks at about 4,000 feet. When reaching up for insects, the Hermit 

 shows the black triangle on his throat, and when slowly leaning down to look 

 below, as he does characteristically, he shows the black triangle pointing for- 

 ward from the back of his head — both striking and unusual markings. 



