iSSs-l Brewster on a Collection of Arizona Birds. 20 



ened by numerous pores, but it nevertheless has a decided polish. 

 Fresh eggs were found from May lo to June 27, dates which 

 indicate that the species breeds rather late in the season. 



Juv.., first flumage, $ (No. 608, Camp Lowell, June 28). Above 

 plumbeous-ashy, the forehead spotted with pale rufous, the back indis- 

 tinctly barred with reddish-brown ; wings and tail marked as in the 

 adult, but with rusty-brown instead of pale rufous ; beneath ashy-white, 

 barred everywhere — but most heavilj- on the breast — with ashy-brown ; 

 throat tinged with rufous. Another specimen, which is apparently a little 

 older, has the back sparingly marked with rusty. 



Among sixteen adult birds I find remarkably little individual variation. 

 Some specimens, however, are rather more coarsely spotted above than 

 others, and the color of the longitudinal streaks beneath varies, in the 

 different examples, from ashy-brown slightly tinged with rufous to a 

 decided rusty-chestnut. There is apparently no sexual difference, even in 

 respect to size. The extremes are as follows : 



Largest J, length, 6; extent, 15.10; wing, 4.33; tail, 2.26. 



Smallest $ , length, 5.60; extent, 14.60; vving, 4.20; tail, 2.19. 



Largest $, length, 5.90; extent. 15.20; wing, 4.27; tail, 2.16. 



Smallest $, length, 5.60; extent. 14.90; wing. 4.23; tail, 2. 11. 

 141. Falco sparverius Lmn. Sparrow Hawk. — The 

 Sparrow Hawk was a common and generally distributed species 

 in all the regions traversed. I have already, in another connec- 

 tion,* mentioned the iinding of its feathers in a cave near Ga- 

 leyville. 



" Iris dark brown ; bill bluish, blackening at t.'p; legs light yellow." 



143. Polyborus cheriway {jfacg.) Caban. Caracara 

 Eagle. — Heermann is accredited with having found this species 

 ''abundant" on the Rio Gila and Colorado near Fort Yuma, but 

 I cannot learn that it has ever been detected elsewhere in Ari- 

 zona. Its presence at Tucson, as attested by the following speci- 

 men, is therefore of some interest. 



348, $ im., Tucson, May 9. "Iris brown; bill pale green at base, 

 becoming nearly white at tip; bare portions of the head dull purplish-red, 

 whitish under the eyes ; legs white with a yellowish tinge. This individual 

 was in company with Turkey Buzzards and Ravens at a slaughter-house ; 

 It was wilder than the other birds, being the first to fly when I approached 

 the spot. I was told of another individual which sometimes accompan- 

 ied it." 



143. Pandion haliaetus carolinensis ( Gw/.) A'/^^w. Fish 

 Hawk. — The onlv mention of this species which I iind among 

 the present notes, is an incidental reference to an individual seen 

 near Tucson on April 23. 



*This Bulletin, Vol. VII, p. 211. 



