BREWSTER: BIRDS OF THE CAPE REGION, LOWER CALIFORNIA. 121 
other five at San José del Rancho in December. Mr. Belding’s mention of 
difficilis as “rare” may refer partly or wholly to the next species, which, of 
course, had not been separated at the time Mr. Belding’s papers were written. 
It is not probable that H. difficilis breeds anywhere in the Cape Region, 
although it may possibly do so in the extreme northern portions of the Penin- 
sula. According to Mr. Bryant, it has been met with by Mr. Anthony at 
Valladares, during the autumnal migration, and by Mr. Belding in wooded 
eafions north of San Pedro Martir in May. It is abundant in summer through- 
out most of California and regularly ranges northward into British Columbia, 
while a single specimen has been taken at Sitka, Alaska.4_ In winter, it is said 
to go as far southward as Costa Rica. 
Empidonax cineritius Brewsr. 
St. Lucas FLYCATCHER. 
Empidonar flaviventris Cooper, Orn. Cal., 1870, 328, 329, part (Cape St. Lucas). 
Coves, Check List, 1873, 53, no. 259, part. 
[Empidonax] flaviventris Cours, Key N. Amer. Birds, 1872, 175, 176, part. 
Empidonar difficilis Ripeway, Nom. N. Amer. Birds (Bull. U. S. Nat. Mus., no. 21), 
1881, 31, no. 328, part. (?) Betpinc, Proc. U.S. Nat. Mus., V. 1883, 542, 
part (Cape Region); VI. 1885, 348, part (Victoria Mts.). A. O. U., Check 
List, 1886, 234, 235, no. 464, part. (%) Bryant, Proc. Calif. Acad. Sci., 2d 
ser., II. 1889, 291, part (Cape Region, etc.). 
Empidonax flavitentris difficilis Cours, Check List, 2d ed., 1882, 71, no. 389, part. 
Empidonax cineritius BREwsTeER, Auk, V. 1888, 90, 91 (orig. descr.; types from 
La Laguna). A. O. U. ComMM., Suppl. to Check List, 1889, 10; Check List, 
abridged ed., 1889, and 2d ed, 1895, no. 464.1.. Bryant, Proc. Calif. Acad. 
Sci., 2d ser., II. 1889, 291 (La Laguna; Comondu, etc.). Townsenp, Proc. 
U. S. Nat. Mus., XIII. 1890, 137 (Cape St. Lucas). Atien, Auk, X. 1893, 
142 (tropical type). ANTHONY, Zoe, IV. 1893, 238 (San Pedro Martir) ; 
Auk, XII. 1895, 140 (San Fernando), 390 (Cuymaca Peak, San Diego co., 
Calif.). Cours, Key N. Amer. Birds, 4th ed., 1894, 901 (descr.; Lower 
Calif.). Brenprre, Life Hist. N. Amer. Birds, pt. II. 1895, 301 (La Laguna). 
Ripeway, Man. N. Amer. Birds, 2d ed., 1896, 599 (descr.; Lower Calif.). 
E[mpidonaz] f[/aviventris] difficilis ? Cours, Key N. Amer. Birds, 4th ed., 1894, 442, 
part. 
E [mpidonax] difficilis Rrpaway, Man. N. Amer. Birds, 2d ed., 1896, 340, part. 
[Empidonax bairdi] var. cineritia DuBois, Synop. Avium, fasc. IV. 1900, 248 (Cali- 
fornia). 
[Empidonaz] cineritius Suarpx, Hand-list, III. 1901, 139. 
Some of my winter specimens of this species appear to differ from those of 
diffictlis only in respect to size and proportions and in having the general 
coloring duller —less olivaceous above and on the breast and sides, lighter 
1 Nelson, Rept. Nat. Hist. Coll. Alaska, 1887, 162. 
