82 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 
Accipiter cooperii (Bonap.). 
CoorEr’s Hawk. 
Accipiter cooperi RrpGwayY, Proc. U.S. Nat. Mus., V. 1883, 533, footnote (Cape St. 
Lucas; San Nicolas). Brxpine, Jbid., VI. 1885, 351 (La Paz and s.). 
Bryant, Proc. Calif. Acad. Sci. 2d ser., II. 1889, 279 (Cape St. Lucas; 
La Paz). 
The collection contains two specimens of this Hawk, a male and female, 
both immature. They belong to the dark, heavily streaked form that has 
been called A. mexicanus. 
Cooper’s Hawk was found by Mr. Frazar at much the same seasons and 
places as A. velox. It was commoner, however, and apparently less strictly a 
winter visitor, for it was seen at San José del Cabo as early as October 14 
and on the Sierra de la Laguna as late as May 9, when a male in immature © 
plumage was taken. 
In the northern portions of the Peninsula Mr. Anthony has found Cooper’s 
Hawk “common as high as 4,000 feet altitude until late in the spring,” but 
he does not remember to have “seen it after the last of May ” (Bryant). It 
breeds in California and northward into British Columbia and migrates south- 
ward to southern Mexico. 
Parabuteo unicinctus harrisi (Auvp.). 
Harris’s Hawk. 
Parabuteo unicinctus harrisi BELD1NG, Proc. U.S. Nat. Mus., V. 1883, 544 (San José 
to Miraflores), 548 (San José). Bryant, Proc. Calif. Acad. Sci., 2d ser., IT. 
1889, 279 (San José del Cabo to Miraflores). Brnpire, Life Hist. N. Amer. 
Birds, pt. I. 1892, 204 (San José del Cabo to Miraflores). 
Harris’s Hawk is apparently resident in the Cape Region. Mr. Belding met 
with it frequently along the road from San José del Cabo to Miraflores and 
noted it as common at the former place on May 17, 1882. Mr. Frazar found 
it most numerously at Triunfo; he saw very few at San José del Cabo and 
none on the Sierra de la Laguna. About La Paz it was decidedly rare. While 
staying at the house of Mr. Viosca, the American Consul at La Paz, Mr. Frazar 
had an interesting experience with a bird of this species. It came into the 
yard — which was filled with trees and bounded on three sides by buildings, 
on the fourth side by a fence, the total space enclosed being about thirty yards 
square —and began splashing about in an oval water tank, making frantic 
attempts to catch some of the numerous gold fish confined therein. The fish, 
however, concealed themselves among the rocks on the bottom, and the Hawk 
was shot before it had done any damage. Its plumage was thoroughly water- 
