192 FALCONIDJE. 



Falco lineatus, G/n. S. N. i. p. 268 (1788) ; Wils. Am. Orn. vi. p. 86, 



pi, 53. fig. 3 (1812) ; Audub. Orn. Biogr. i. p. 296 (1831). 

 Falco hyemalis, Gm. S. N. i. p. 274 (1788) ; Wik. Am. Orn. iv. 



p. 73, pi. 35 (1811); And. B. Am. i. pis. 56, 71, et Orn. Biogr. i. 



p. 364 (1831). 

 Circus hyemalis, Vieill. Ois. Am. Sept. pi. 7 (1807). 

 Buteo fuscus, Vieill. torn. cit. pi. 5 (1807). 

 Nisus hiemalis, Ciiv. B^gne An. i. p. 334 (1829). 

 Astur fuscus, Bp. Oss. Regno An. Cuv. p. 37 (1830). 

 Buteo hiemalis, Less. Traite, p. 81 (1831). 



Astur hiemalis, Jard. ed. Wils. Am. Om. ii. p. 72, pi. 35. fig. 1 (1832). 

 Buteo lineatus, Jard. ed. Wils. Am. Orn. ii. p. 290 (1832) ; Gray, 



Gen. B. p. 12 (1849) ; Bp. Consp. i. p. 19 (1850) ; Cass. B. Calif. 



p. 99 (1855) ; Strickl. Orn. Si/n. p. 31 (1855) ; Cass, in Baird's B. 



N. Am. p. 28 (1860) ; Pelz. Verh. z.-b. Wien, 1862, p. 150 ; 8chl. 



Mus. P.-B. Buteones, p. 20 (1862); Grag, Hand-l. B. i. p. 7 



(1869) ; Allen, Bull Harv. Coll. ii. p. 329 (1871) ; Coues, Keg N. 



Am. B. p. 217 (1872) ; Scl. ^ Salv. Nomencl. Av. Neotr. p. 119 



(1873) ; ScM. Revue Accipitr. p. 108 (1873). 

 Poecilopternis lineatus, Kaup, Isis, 1847, p. 3.30. 

 Buteo elegans, Cass. Pr. Phil. Acad. 1855, p. 281 ; Strickl. Orn. Sgn. 



p. 38 (1855); Cass, in Baird's B. N. Am. p. 28 (1860); Grag, 



Hand-l. B. i. p. 7 (1869) ; Coo2)er, B. Calif, ed. Baird, p. 477 



(1871). 



Young. Above broMTi, the head, nape, and sides of neck much 

 streaked with white ; the dorsal and scapular feathers with white 

 bases to the feathers, more or less concealed and margined with 

 ochraceoiis buff, more inclining to rufous on the small wing-coverts; 

 greater and median coverts brown, margined and barred vdth 

 white, forming a distinct pattern ; quills brown, tipped with white, 

 primaries white or rufous, white along basal half of outer web, the 

 secondaries less conspicuously so, aU barred with darker brown, 

 inner web white, the bars distinct on secondaries, but obsolete on 

 primaries ; upper tail-coverts white, with spots of brown, the sub- 

 terminal one large and rounded ; tail pale tawny rufous near the 

 base, ashy brown towards the tip, which is white, and crossed with 

 eight or nine bars of darker brown of greater or less distinctness ; 

 lores, eyebrow, and sides of face white ; cheeks dark brown, forming 

 a distinct stripe ; sides of neck brown, streaked with white ; under 

 surface of body white, the throat narrowly streaked with brown 

 down the centre, the breast with larger spade-shaped spots of 

 brown, inclining to oval drops on flanks, and gradually vanishing 

 on thighs and under tail-coverts ; under wing-coverts buffy white, 

 with a few longitudinal streaks of brown. 



Adult. Above broAvn, with rufous buff margins to the feathers, 

 producing a somewhat streaked appearance, especially on the head 

 and neck, where the margins are much paler ; lores and frontal 

 feathers white ; ear-coverts whitish, narrowly streaked with brown ; 

 cheeks dark brown, with slight rufescent streaks ; least wing- 

 coverts tawny rufous, forming a conspicuous shoulder-patch, the 

 feathers dark brown in the centre ; rest of wing-coverts ashy brown, 

 externally spotted with white, forming a chequered pattern on the 



