334 



ACCIPITER COOPERI, COOPEE'S HAWK. 



& Suck. N. H. Waeb. Ter. 1860, 143.— BlaiC., Ibis, iii, 1861, 317.— Scl., P. Z. S. 



1864. 176.— DltF.«P., Ibis, 1.^6'J, 324.— CouKs, Pr. Phila. Acad. l.^liG, 43 (Arizona).— 



SCL. A- Salv., p. Z. S. 1B69, -^fiO (Jlosciuito Coast).— D all & Bann'., Tr. Chic. 



Acad, i, 1869, 271.— Gray, Hand-list, i, 1«69, 32, No. 304. — Lawh., Ann. 



Lye. N. Y. ix, 134 (Costa Kica).— Salv., P. Z. S. 1870, 210 (Veragiia).- Coop., 



B. Cal. i, 1870, 466.— Allen, Bull. M. C. Z. ii, 1871, 319.— Stev., XT. S. Geol. 



Surv. Ter. 1870, 462.— Merr., Hid. 1872, 69, 9.— Snow, B. Kans. I.s7;;.— Coues, 



Key, 1872. 212 ; and of most late authors. 

 Asturfuscus, AuD.'. Syn. 1839, 18 ; B. Am. i, 1840, 100, pi 25.— DeIUy, K. Y. Zool. 1S44, 



ii, 17, pi. 2, f. 2.— GiR., B. L. I. 1844, 19. 

 Nisus fusciis, Kaup, ilou. Falc. Cont. Orn. 1850, 64.— FixscH, Abh. Nat. in, 1872, 26 



(Alaska).— B. B. & E., N. A. B. iii, 1874, 224. 

 Falco dubius, Gji., Syst. Nat. i, 1788, 281.— Lath., I. O. i, 1790, 44.— Dacd., Tr. Orn. 122. 

 Accipiter striatus, Vieill., Ois. Am. Sept. i, 1^07, 42, pi. 14 ; Enc. Meth. iii, 12;;o. 

 Falco vclox, WiLS., Am. Orn. v, 1812, 116, pi. 45, f. 1.— Bp., Syn. 1828, 29 ; Isis, 1832, 1137. 

 Accipiter velox, ViG., Zool. Jouru. i, 338. — Steph., Gen. Zool. xiii, pt. ii, 31. 

 Asttir velox, .L\MES., ed. Wils. i, 08. 



Falco pennsylvanicus, WiLS., Am. Orn. vi, 1812, 13, pi. 46, f. 1. 

 Nisus pennitilvanicua, C'uv., E. A. 2d ed. i, 334. 

 Nisn-i pensijiraiicus, Less., Tr. Orn. i, 1831, 59. 

 Accipiter j>enn8ijlranicus, Vir;., Zool. Journ. i, 338. — Steph., Gen. Zool. xiii, pt. ii, 32. — 



Sw. & Eicn., P. B. A. Ii, 1831, 44.— Jard., ed. Wils. ii, 210.— Sw., Classif. 



B. ii, 1837, 215. 

 Astur pcnnsijlvamcHs, Less., JIan. Orn. i, 92. — James., ed. Wils. i, 70. 

 Sparviua lineatus, Vieill., Enc. Meth. iii, 1823, 1286. 

 A'isiis malfini (juv.), Less., Traitd d'Om. i, 1831, 58. 

 Accipiter ardosiacus, Vieill., Enc. Meth. iii, 1274. 

 ' cooperi, 9 , and fringillarias, partly, Kaup" {fide Gray). 



Hal). — The whole of North America. Soutli to Panama. 



Late Expeditions. — 60624, Uintah Mountains ; 62234-5, Wyoming. 



Although not noticed by Dr. Haydea during the Warren explora- 

 tions, this handsome and spirited little Hawk was observed by natural- 

 ists of the Eaynolds' Expedition, and ranges over the whole of the Mis- 

 souri region, as elsewhere ou our continent. It is one of the best known, 

 and, in most sections, one of the more abundant of our birds of this 

 family. It preys chiefly upon small birds and quadrupeds, captured in 

 the dashing manner of all the species of this group, and, like its small 

 allies, feeds to some extent upon insects. It nests in trees, or on rocks, 

 preferably the former, laying four or five eggs. They are difficult of con- 

 cise description, because so variable. The white ground-color has often 

 a livid or even purplish tint, and is marked, often so thickly as to be 

 obscured, with large, irregular splashes of various shades of brown, 

 interminably changeable in number, size, and pattern, sometimes inclin- 

 ing to form masses or a wreath, sometimes more evenly distributed. 

 The egg is of nearly equal size at both ends, and measures about 1.45 

 bv 1.15. 



y A-COIPITEE COOPERI, (Bp.) Gray. 

 Cooper's Hawk; Chicken Hawk. 



a. cooperi. 



Falco cooperi, Bp., Am. Orn. ii, 1828, p. 1, pi. 1, f. 1 ; Syn. 1828, 433 ; Isis, 1830, 1137.— 

 NUTT., Man. i, 1832, 90.— James., ed. Wils. iv, 3.— Peab., Rep. Orn. Mass. 78. 



Astnr cooperi, Bp., Comp. List, 1838,'5 ; Consp. i, 1850, 31.— Aitd., Syn. 1839, 18 ; B. Am. 

 i, 1840, 98, pi. 24.— Newb., P. E. E. Eep. vi, 1857, 74.— Maxim., J. f. O. vi, 1858, 13 



