BREWSTER: BIRDS OF THE CAPE REGION, LOWER CALIFORNIA. 91 
Falco sparverius Barrp, Rept. Pac. R. R. Surv., IX. 1858, 18, 14, part. Cougs, 
Check List, 1873, 69, no. 346, part; 2d ed., 1882, 87, no. 508, part. Bairp, 
Brewer, and Ripeway, Hist. N. Amer. Birds, III. 1874, 169-171, part. 
A. O. U., Check List, 1886, 196, no. 560, part. (%) Bryant, Proc. Calif. 
Acad. Sci., 2d ser., II. 1889, 281, 282, part (Cape Region, etc.). 
[ Tinnunculus] sparverius GRAY, Hand-list, I. 1869, 28, no. 216, part. 
[Falco] sparverius Cours, Key N. Amer. Birds, 1872, 214, 215, part. 
Cerchneis sparveria SHARPE, Cat. Brit. Birds, I. 1874, 487-489, part. 
Tinnunculus sparverius Ripegway, Nom, N. Amer. Birds (Bull. U. S. Nat. Mus., no. 
21), 1881, 38, no. 420, part. 
Falco sparverius peninsularis Mearns, Auk, IX. 1892, 267 (orig. descr.; type from 
San José). A.O. U. Comm., Auk, X. 1895, 60, no. 860b; Check List, 2d 
ed., 1895, 140, no. 360 b. 
F falco] sparverius RipGway, Man. N. Amer. Birds, 2d ed., 1896, 252, part. 
[ Cerchneis] peninsularis Suarpe, Hand_-list, I. 1899, 278. 
The characters by which Dr. Mearns has proposed to distinguish Falco spar- 
verius peninsularis are presented very constantly by twelve of the Sparrow 
Hawks collected by Mr. Frazar. Among these are an adult male taken at 
Triunfo on April 20, another in excessively worn breeding plumage shot at 
San José del Rancho on July 8, and a young male, just from the nest and 
barely large enough to fly, which was captured at the place last named on 
July 17. Eight of the remaining specimens were obtained in the Cape Region 
(at Triunfo, Santiago, or San José del Cabo) in October, November, or Decem- 
ber, while the ninth was shot at Carmen Island on March 2. 
This small, light-colored form of the Sparrow Hawk is of common occur- 
rence in the Cape Region in autumn. and winter, but it does not appear to 
breed there at all numerously, for Mr. Frazar. met with it in summer only at 
San José del Rancho where he notes it as “ very rare.” It is believed to be 
confined to Lower California, but we have no definite knowledge as to just how 
far up the Peninsula its distribution extends. Mr. Bryant reports that he 
met with Falco sparverius “on Santa Margarita Island, Magdalena Island, 
Guadalupe Island, and several places” in Lower California; he also states 
that Mr. Anthony found it “‘common in summer along the base of San 
Pedro Martir, ranging in May to 9,000 feet altitude, and only seen on the 
coast during winter.” These records relate of course either to peninsularis 
or deserticolus — or both — but at the time they were published neither of the 
forms just mentioned had been described. 
Polyborus cheriway (Jaca.). 
AUDUBON’S CARACARA. 
Polyborus cherway Bevpinc, Proc. U. S. Nat. Mus., V. 1883, 543 (Cape Region), 
547 (San José). Bryant, Proc. Calif. Acad. Sci., 2d ser., II. 1889, 282 
(Cape Region, Cape St. Lucas). Brnvire, Life Hist. N. Amer. Birds, pt. 
J. 1892, 318 (deser. egg from Cape St. Lucas). 
