FALCONID J: — THE FALCONS. 237 



tarsus, 2.80-3.15 ; middle too, 1.80-2.20. Huh. Northern portions 



of the Old World vav. palumb arius} 



Adult. Above Ijluish slate-color, with conspiouou.s darker shaft-streaks; 

 top of the head deep black ; markings on the lower parts in the form 

 of irregularly delined, narrow, zigzag bars, or fine lines, of a bluish-slaty 

 tint ; throat not barred. Tail with only about four indistinct bands of 

 blackish. Wing, 12 00-14.70: tail, 9.50-12.7.5; culmen, .80-1.00; 

 tarsus, 2.70-3.20; middle toe, 1.70 - 2.00. Hah. Northern portions 

 of North America var. atricapill us. 



Astur palumbarius, var. atricapillus (Was.). 



AMERICAN GOSHAWK. 



Fako atricapillus, AV'iLs. Am. Orii. 1808, pi. Hi, f. 3. — Boxap. Nouv. Giom. Pisa, XXV, 

 pt. ii, p. 55. Astur atricapillus, Bonap. Os. Cuv. Reg. Au. p. 33. — Ib. List, 1838, 

 5 ; Coiisp. 31. — WiLS. Am. Orn. II, 284. — K.\up, Mouog. Falc. Jardine's Contr. Orn. 

 1850, 66. -De Kay, Zobl. N. Y. II, 19, pl. ii, fig. 4 (ad.), f. 5 (g juv.). — Nutt. 

 Man. 85. — Stkickl. Orn. Syn. I, 118.— Newb. P. R. Rep. VI, iv, 74. — Coop. & 

 Suck. P. R. Rep. XII, ii, 144. — Lord, Pr. R. A. I. IV, 1S60, 110. — Blaki.ston, 

 Ibis, III, 1861, 316. — Gkay, Hand List, I, 1869, 29. — Bp.ewek, Oologj-, 1857, 17. 

 Falco palumbarius. Sab. Frankl. Exp. 670. — Boxap. Ann. N. Y. Lye. 11,28. — Aud. 

 Edinb. J. Nat. Geog. Sc. Ill, 145. — In. B. Am, pl. cxli ; Orn. Biog. II, 241. — Gi- 

 eaud, B. Long Isl'd, 18. — Peab. B. Mas.s. Ill, 77. Astur palumbarius, Sw. & Rich. 

 F. B. a. II, pl. xxvi. — James. Wils. Am. Cm. I, 63. — Aud. Sj-n. B. Am. 18. — 

 Brewer, Wils. Am. Orn. 685, pl. i, fig. 5. — Gr.w, List B. Brit. Mus. 63. 



Sp. Char. Adult male (44,940, Boston, Mass.; E.A.Samuels). Above continuous 

 bluish-slate, .shafts of the feather inconspicuously black ; tail darker and less bluish, tipped 

 with white (about .25 of an inch wide) and crossed by five broad, faintly defined bars of 

 blackish, these most distinct on inner webs (the first concealed by the upper coverts, the 

 second partially so ; the last, or subterminal one, which is about twice as broad as the rest, 

 measuring about one inch in width). Primaries darker than the tail (but not approaching 

 black). Forehead, crown, occiput, and ear-coverts pure plumbeous-black ; feathers snowy- 

 white beneath the surface, much exposed on the occiput ; a broad conspicuous supra- 

 oral stripe originating above the posterior angle of the e3'e, running back over the ear- 

 coverts to the occiput, pure white, with fine streaks of black; lores and cheeks graj'ish- 

 white. Lower parts white ; the whole surface (except throat and lower tail-coverts) 

 covered with numerous narrow transver.se bars of slate ; on the breast these are mueh 

 broken and irregular, forming fine transverse zigzags ; posteriorly they are more regular, 

 and about .10 of an inch wide, the white a very little more. Chin, throat, and cheeks 

 without transverse bars, but with very sharp shaft-lines of black ; breast, sides, and abdo- 

 men, a medial longitudinal broad streak of slate on each feather, the shaft black; on the 

 tibia:, where the transverse bars are narrower and more regular, the shaft-streaks are also 



1 Astur paltimharius, var. palumbnrius (Linx.). Faho palumbarius, Lixx. S. N. 1766, 130. 

 Astur p., Cuv. R^g. An. (ed. 1), I, 320 ; et ArcT. ffab. Europe and Asia. 



S/KcimcHs examined. — National Museum, 2 ; Philadelphia Academy, 10 ; Boston Society, 5 ; 

 JIuseum Comp. Zobl., Cambridge, 1 ; New York Museum, 1. Total, 19. 



Measurements. — g . Wing, 12.25-13.70; t.iil, 9.40-10.00; culmen, .80 ; tarsus, 3.00; 

 middle toe, 1.80. ?. Wing, 13.80-14.50; tail, 10.10-10.90; culmen, .00-. 95; tarsus, 

 2.S0-3.15 ; middle toe, 2.05-2.20. 



