Brewster on a Collection of Arizona Birds. 
2 9 
1SS3.] 
ened by numerous pores, but it nevertheless has a decided polish. 
Fresh eggs were found from May 10 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 heavily 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; wing, 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 Linn . 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 finding of its feathers in a cave near Ga- 
leyville. 
Iris dark brown ; bill bluish, blackening at t.'p ; legs light yellow.” 
142. Polyborus cheriway (Jacq.) 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 ( Gm.) Ridgw. Fish 
Hawk. — The only mention of this species which I find among 
the present notes, is an incidental reference to an individual seen 
near Tucson on April 23. 
*This Bulletin, Vol. VII, p. 211. 
