BREWSTER: BIRDS OF THE CAPE REGION, LOWER CALIFORNIA. 89 
Falco mexicanus ScHLEc. 
PRAIRIE FALCON. 
Hierofalco mexicanus Betp1nG, Proc. U. S. Nat. Mus., V. 1888, 533, footnote (Mira- 
flores ; Cape St. Lucas ; San José del Cabo). 
Falco mexicanus Bryant, Proc. Calif. Acad. Sci., 2d ser., II. 1889, 281 (Miraflores ; 
Cape St. Lucas; San José del Cabo). 
According to Mr. Ridgway, this Falcon was taken by Xantus at “ Miraflores 
November 25; Cape Saint Lucas, December 14 ; San José del Cabo, Decem- 
ber, January.” It was not met with by Mr. Belding, nor certainly identified 
by Mr. Frazar. Mr. Bryant saw a pair about a cliff at Comondu in 1888, a 
single bird on Santa Margarita Island on March 2, 1889, and “a pair nesting 
in a high cliff” at San Esteban on April 18, 1889. The Prairie Falcon breeds 
rather commonly in California and Oregon, and ranges south into Mexico. 
Falco peregrinus anatum (Bonap.). 
Duck Hawk. 
Mr. Frazar, who seems to have been the first to meet with the Duck Hawk in 
the Cape Region, saw a few birds in February and March at La Paz (where one 
specimen, an adult female, was obtained) and others, in October and Novem- 
ber, at San José del Cabo and Santiago. In the northern part of Lower Cali- 
fornia the species has been ‘‘ found nesting in the cliffs along the coast at 
several places from San Carlos landing to San Quintin by Mr. Anthony, who 
says they are more common in winter” (Bryant). 
The Duck Hawk inhabits the entire continent of America wherever the 
local conditions are suited to its requirements. 
Falco columbarius Liny. 
Pickon Hawk. 
Aesalon columbarius BELDING, Proc. U. S. Nat. Mus., VI. 1883, 351 (a Paz). 
Falco columbarius BRYANT, Proc. Calif. Acad. Sci., 2d ser., II. 1889, 281 (La Paz). 
Several Pigeon Hawks were seen in autumn at San José del Cabo and Sant- 
iago by Mr. Frazar, the earliest date of observation being September 17, the 
latest November 17. The collection contains a typical specimen from each 
of these localities. Mr. Belding has reported the capture of a bird at La Paz 
in January, 1883. The species was not met with by either Mr. Bryant or 
Mr. Anthony. It ranges southward in winter to northern South America, and 
breeds chiefly north of the United States. 
