BREWSTER: BIRDS OF THE CAPE REGION, LOWER CALIFORNIA. 179 
Lower California on their way to and from western Mexico, where celata is 
common in spring and autumn. It is said to winter in southern Mexico, the 
extreme southern limit of its known range at that season being Guatemala. 
Helminthophila celata lutescens (Rivew.). 
LUutTESCENT WARBLER. 
(2) Helminthophaga celata (not Sylvia celata Say) Barrp, Rev. Amer. Birds, pt. I. 
1864, 1865, 176, 177 (San José ; Cape St. Lucas). 
Helminthophila celata lutescens BeLpine, Proc. U. S. Nat. Mus., V. 1883, 536 (Cape 
Region) ; VI. 1883, 347 (Victoria Mts.). Bryant, Proc. Calif. Acad. Sci., 
2d ser., II. 1889, 308 (Cape Region). Townsenp, Proc. U. S. Nat. Mus., 
XIII. 1890, 187 (Cape St. Lucas). 
This, the characteristic form of the Cape Region, is a rather common winter 
resident, arriving from the north early in October and departing again before 
the end of February, according to Mr. Frazar, who took no specimens later 
than February 9. He found the bird at La Paz, San José del Cabo, Santiago, 
Triunfo, and San José del Rancho, but not on the Sierra de la Laguna. Mr. 
Bryant records it from Santa Margarita Island (January), Comondu (March), 
San Benito Cafion (April 10), and El Rosario (May 21), while Mr. Anthony 
has met with it during the spring migration (in late April and early May) at 
San Fernando and about the base of San Pedro Martir.} 
H. c. lutescens winters as far northas San Diego. Its summer range includes 
most of California and the regions northward to Alaska, chiefly on the Pacific 
slope. I have typical specimens from western Mexico. 
Dendroica aestiva (GMEL.). 
YELLOW WARBLER. 
(2) Dendroeca aestiva BELDING, Proc. U.S. Nat. Mus., V. 1883, 536, part (Cape 
Region). 
(t) Dendroica aestiva Bryant, Proc. Calif. Acad. Sci., 2d ser., II. 1889, 309, part 
(Cape Region). 
All but one of the eleven Yellow Warblers obtained in the Cape Region by 
Mr. Frazar are young birds which were killed in autumn. The exception, a 
male taken at La Paz on February 5, is in nearly full nuptial condition. This 
bird seems to be sonorana, while four of the young females (from San José del 
Cabo) are quite typical of that race. The remaining six birds apparently 
belong to the form which breeds in California, and which, although usually 
called aestiva, has been referred by a few writers to morcomz.? It differs rather 
1 Auk, XII. 1895, 142; Zoe, IV. 1893, 244. 
2 Dendroica aestiva morcomi Coale, Ridgway Orn. Club, Bull., II. 1887, 82. 
