BREWSTER: BIRDS OF THE CAPE REGION, LOWER CALIFORNIA. 83 
soaked, its body very thin, indicating that it had been made desperate by 
starvation. 
Mr. Belding has seen Harris’s Hawk about forty miles south of San Diego, 
California, and hence very near the northern boundary of the Peninsula. Mr, 
Bryant has observed it at San Jorge, near San Juan, and at San Gregoria. 
At the place last named he found a nest on April 6, 1889, built in the top of a 
bush (Atamisquea emarginata) and containing two eggs, ‘one of them quite 
fresh, the other with a small embryo.’’? 
Mr. Anthony states that a few birds of this species nested in 1894 near San 
Fernando, “in cirios between the mine and the beach,” 2 and that during the 
previous year others were seen in valleys ‘‘ between Ensenada and Colnett, 
and in one or two places on San Pedro [Martir] as high as 7000 feet.’’§ 
The general range of Harris’s Hawk on or near the Pacific coast extends 
from northern Lower California to Panama. 
Buteo borealis calurus (Cass.). 
WESTERN RED-TAIL. 
B[uteo] lucasanus Rrpeway, in Cougs, Key N. Amer. Birds, 1872, 216 (nominal 
mention only under B. borealis ; Cape St. Lucas). 
[ Buteo borealis] var. lucasanus RipGway, in Batrb, Brewer, and Ripeway, Hist. 
N. Amer. Birds, III. 1874, 258 (key to species), 285, 286 (orig. descr.; type 
from Cape St. Lucas). 
Buteo borealis calurus BeipinG, Proc. U. S. Nat. Mus., V. 1883, 544 (Cape Region) ; 
VI. 18838, 350 (Victoria Mts.). Rripeway, /bid., V. 1883, 544 (crit.; Cape 
Region). Bryant, Proc. Calif. Acad. Sci., 2d ser., II. 1889, 280 (Cape 
Region). 
Buteo borealis lucasanus Bryant, Loc. cit. (name only). Patmer, Auk, XIII. 1896, 
342 (note on proper citation). Brnprre, Life Hist. N. Amer. Birds, pt. I. 
1892, 217 (crit. ; Cape St. Lucas). 
Buteo borealis GopMan and Suarpe, Biol. Centr.-Amer., Aves, III. 1900, 63, 64, part 
(crit.; Cape St. Lucas). 
The determination of the Red-tailed Hawks collected by Mr. Frazar in 
Lower California has proved somewhat difficult, for they vary exceedingly in 
color and markings. In fact I found it impossible to come to any satisfactory 
conclusion regarding them until, thanks to the kindness of Mr. Ridgway and 
Dr. Allen, I was able to compare them with the material in the U. S. National 
Museum and in the American Museum of New York. This includes the type 
of Buteo borealis lucasanus as well as four other specimens referred to that 
form by Mr. Ridgway; three specimens each, including the types, of Buteo 
borealis socorroensis and B. b. costaricensis ; and a superb series of B. b. calurus, 
1 Proc. Calif. Acad. Sci., 2d ser., II. 1889, 279, 280. 
2 Auk, XII. 1895, 137; 
8 Zoe, LV. 1898, 233. 
