7. DENDKCECA. 293 



the feathers, although more or less evident traces of the black may 

 be traced on the forehead and along the sides of the crown ; ear- 

 coverts black, washed with ashy ; the black throat entirely obscured 

 by white ends to the feathers. 



Young in autumn plumage. Resembles the winter plumage of the 

 adults, having the head like the back ; the mantle with no sign of 

 black central streaks, but with a strong wash of brown on it and 

 on the scapulars ; the head also washed with brown, the black bases 

 to the feathers being here and there perceptible ; the white on the 

 tail not quite so extensive as in fully adult birds ; under surface of 

 body white, through which may be traced the approaching black 

 plumage of the adult stage ; the yellow spot above the lores deve- 

 loi^ed as in fully adult birds. 



A young bird collected by A. Forrer at Presidio, in Mexico, 

 on the 31st of December (mus. Salvia and Godman), has the under- 

 parts entirely white, with a distinct yellowish tinge ; on the lower 

 throat, where the white tips arc somewhat woi-n, the feathers show 

 slight signs of black, and the flanks are obscurely streaked ; the 

 sides of the breast are distinctly marked with ashy. 



Hab. United States, from the Rocky Mountains to the Pacific, 

 breeding in suitable places throughout its U.S. range (Coues). 

 Winters in Mexico. 



a. Imm. sk. Arizona (Henshaw). R. B. Sharpe, Esq. [P.]. 



b,c. cJ $ ad. sk. Santa Rita Mountains, U.S. Nat. Museum |_P.]. 



Arizona, June {E. W. 



Nelson). 



d. S ad. sk. Northern California, June R. B. Sharpe, Esq. [P.]. 



24 (C. 11. Toronsend). 



e. (S ad. sk. W. Mexico (Donnan). Sclater Collection. 

 /. c? iunn. sk. Oaxaca, Mexico, March Sclater Collection. 



(Boucard). 



ff, h. c? 2 ^^^- sk. La Parada, Mexico. A. Boucard, Esq. [C.l. 



i. c? fid. sk. Puebla, Mexico. A. Boucard, Esq. [C.j. 



k. Ad. sk. Mexico. Gould Collection. 



14. Dendrceca occidentalis. 



Sylvia occidentalis. Towns. Jouni. Philad, Acad. vii. p. 190 (1837), 



" viii. p. 153 (1839) ; Aicdub. B. Amer. pi. 395. figs. 3 & 4 ; id. Orn. 



Biogr. v. p. 55 (1839). 

 Sylvicola occidentalis, Bp. Comp. List B. Eur. ^- N. Amer. p. 23 



(1838); Auduh. Syn. p. 60 (1839); Kutt. Man. 1840, p. 445; Bp. 



Consp. i. p. 308 (1850). 

 Mniotilta occidentalis. Gray, Gen. B. i. p, 196 (1848) ; id. Iland-l. B. 



i. T). 240, no. 3468 (18G9). 

 Dendroica occidentahs, Baird, B. N. Amer. p. 268 (1858) ; id. Rev. 



Amer. B. p. 183 (1865) : Smnichr. 3Iem. Bost. Sop. N. H. i. p. 546 



(1869) ; Baird, Brewer, ^- liidqw. Hist. iV. Amer. B. i. p. 266. pi. 12. 



fig. 5' (1874) ; Jlensh. Zuol. Expl. IV. 100th Merid. p. 201 (1876). 

 Dendrceca occidentalis, Sd. Ibis, 1865, p. 89 ; Coues, t. c. p. 163 j 



Salv. Ibis, 1866, p. 191; Coues, Proc. Philad. Acad. 1866, p. 69; 



Sunder. (Efv. K. Vet.-Akad. Fiirh. Stockh. 1869, p. 611 ; Cooper, 



B. Calif, p. 92 (1870) ; Coueg, Key N. Amer. B. p. 98 (1872) ; Scl. 



^- Salv. JVomencl. Av. Neotr. p. 9 (1873) ; Ridgiu. Rep. Geol. Expl, 



■kOthPar. pt. iii. p. 432 (1877); Coues, B. Color. Vail. p. 268 



