82 BULLETIN: MUSEUM OF COMPAP.ATIVE ZOOLOGY. 



Accipiter cooperii (Bonap.). 



Cooper's Hawk. 



Accipiter cooperi Ridgwat, Proc. U. S. Nat. Mus., V. 1883, 533, footnote (Cape St. 

 Lucas; San Nicolas). Beldixg, Ibid., VI. 1883, 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 Jose 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 (Aud.). 



Harris's Hawk. 



Parabuteo unicinctus harrisi Belding, Proc. U. S. Nat. Mus., V. 1883, 544 (San Jose 

 to Miraflores), 548 (San Jose). Bryant, Proc. Calif. Acad. Sci., 2d ser., II. 

 1889, 279 (San Jose del Cabo to Miraflores). Bexdire, Life ^ist. N. Amer. 

 Birds, pt. I. 1892, 204 (San Jose' 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 Josd 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 Jose 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 

 gquare — 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- 



