282 NORTH AMERICAN BIRDS. 



tlio scupulars and wing-coverts; bonoatli wliiti', usiiiilly with a Ijclt of UliKkisli spots 

 across tlio nbdomuii; sonietinios wliolly <liisl<y „r U-M-kUh Ix'iiciUii, Iml tlic pcclnnil rci^ion 

 nlwnys ajipruciiilily li^ditcr limn tlio iilidoincn ; under snrliico of priniariis [ihiin wliilo 

 nnti'rior to dicir oinai'j^dnation. Yoinif/. Tiiil griiyisli-brown, with nine or ton narrow, 

 sharply dolincd hands ol' blackish. PattiMn of other parts as in the adult, but the white 

 purer, and the plumage generally with less rulbus. 



Had. Entire continent of North America ; West Indies. 



Tlie plumage varies from wlidUy dusky Maekisii, with a paler, more 

 brownish, ])ectoral area, and the tail of the adult with numerous black 

 bars, or indieations of bars, to the very base (var. culuni>i), through va- 

 rious proportionate degrees of rulbus and dusky, to entirely pure white 

 beneath, without any spotting; the tail of the adult without a single 

 black bar (vurs. krideri and lucasanus). 



Tor. borealifi, Ghelin. 

 EASTEBN BED-TAIL. 



Falco borcdUs, Gmel. Syst. Nat. p. 206, 178'J. - Lath. Ind. Orn. p. 2Z, 1790 ; Ryn. I, p. 



50, 1780 ; Siipp. II, 34, 17S7 ; Gun. Hi.st. I, p. 'iiiil, 1821. — Dauu. Tr. Orn.' II, 157, 



1800. —Shaw, Zobl. VII, 112, 1812. —Wils. Am. Orn. pi. Hi, fig. ], 1808. —Sab. 



Fraukl. Exp. p. 670. — Waol. i.sis, p. 517, 1831. — lio.NAi>. Ann. N. Y. Lye. II, pj.. 



32, 434 ; I.sis, ]). 1138, 1832. —Al'D. Birds Am. pi. li, 1831 ; Orn. Biog.' I, y. 265, 



1831; .Syn. VI. — Giiav, Genera, 1840. — Rich. F. B. A. II, .^iO, 1831. — Nurr. 



Man. I, 102, 1840. — Go.s.se, Birds .lani. 11, 1847. — Dovfin. Call. I, 229, jil. xxx, 



1830. Buteo boreal is, Vikim,. Nouv. Diet. IIi:,t. Nat. IV, p. 478, 1819 ; Knc. Meth. 



Ill, p. 1222, 1823. — ViG. Zoiil. .(ouni. I, p. 340 ; Zoiil. Beech. Voy. !>. 15. — Sri:rn. 



Zoiil. XIII, pt. 2, p. 47, 1826. — Lr,.s.s. Tr. Orn. p. 79. 1831. — .Iamks. (Wils.) Am. 



Orn. I, pp. 82, 84, 1808. — .lAiai. (Wii.s.) An>. Orn. II, pp. 280, 282, 1808. — Bui; w. 



(Wils.) Am. Orn. p. 450 ; Syiiop. p. 684. — Bonap. E u'. k N. Am. B. p. 3, 1838 ; 



Consp. Av. p. 19. — Arn. Synop. p. <;, 1839. — GiiAV, Gen. B. Ibl. sp. 6, 1844 ; List 



B. Brit. Mus. p. 34, 1844. — PuciiEi!. I!ev. Zoijl. p. 214, 1850. — Gossi:, B. Jam. p. 



11, pi. ii, 1847. — Ca.ss. B. Cal. k Tex. .Syn. p. 97, 1854; Proc. Ac. Sc. Philad. p. 



279, 1855. — Gamb. .Tourn. Ac. Nat. .Sc. Phil. N. S. I, p. 26. — Nrrr. Man. Orn. 

 U. S. & Canad. p. 102, 1833. — l)i; Kay, Zoiil. N. Y. II, p. 9, pi viii, f. 17 (Juv.), 



1844. — Peab. Bost. Journ. Nat. Hist. Ill, p. 80, 1837. — Tho.mi'. Hist. Verm. Aiij.. 

 p. 63, UH.'-.S. - Peale, U. S. Kxpl. Kxp. p. 62, 1848. — Towns. Sit. Exp. Zuni & Color. 

 p. 59. — KAri', Uel). Falk. Mus. Senek. p. 261, 1845. — Stkickl. Orn. Syn. I, 29, 

 1855. — Max. Cab. .lourn. VI, 1858, 17. — Blakist. Ibis, III, 1861, 318. — Wood, 

 Am. Nat. Ill, 1869, 393. — Giiav, Hand List, I, 1869, 7. .l.-ihir bon-a/is, Crv. Heg. 

 An. (ed. 2), I, 332, 1829. -.Swains. Class. B. I, 316; II, 21.5, 1837. P<vcihp/cniis 

 borcalis, Kacp, Isis, Jlon. Falc. Cunt. Orn. 1850, p. 76. Fahv kvcrianns, G.mel. 

 Syst. Nat. 266, 1789. — Lahi. Ind. Orn. p. 181, 1790 ; Syn. Sujip. I, 31, 1787 ; Gen. 

 Hist. I, 620, 1821. — Daii). Tr. Orn. II, 126, 1800. —Shaw, Zoiil. VII, 151, 1812.— 

 Wils. Am. Orn. pi. lii (.luv.), 1808. — Am. Orn. Biog. 1, 265. Biilco Icvcrianus, 

 Vio. Zoiil. .lourn. 1, 340. — .SrEi'ii. Zoiil. XIII, pt. 2, p. 47, 1815. Faho (iqiiilinus, 

 Bauti!. Trail. [). 390, 1791. Accipiler rujimiuliis, Vieill. Ois. Am. Sept. pi. xiv, bis. 

 1807 Buko fiih-us, Vieill. Ois. Am. Sept. p, 34; Nouv. Diet. Hist. IV, )). 468 

 (ipiot. F. jamaiccnsin), 1819. Butin ferrmjincocaudus, Vieill. Ois. Am. Sept. pi. vi, 

 1807. —Cuv. Reg. An. (cd. 2)> I, 337. Butco anierianius, Vieill. Nouv. Diet. Nat. 

 IV, 477 (quot.), Ois. Am. Merid. pl. vi, Enc. Meth. Ill, 1224, 1823. i. Butco (jalll- 

 nivorus, Vieill. Ois. Buico borcalis, Biieweu, N. A. Oijlogy, 1857 



•i(. 



