FALCONIDvE — Till': FALCONS. 129 



burred than in the other races. Youiir/ with narrower Mioaks 

 beneath. Wiuf?, 11.1.") - 12.00 ; tail, (i.11-8.00; ciihiien, .M- 

 .110; tarsus, l.G0-2.0.'j; niidiUo toe, 1.75 --2.1.'). Huh. Aus- 

 tralia ........ var. m el annr/ en 1/ s } 



b. Younj; unvariegatcd brownish-black above. Beneath brownish- 

 black, faintly streaked with wdiite, or nearly unvariefjated. Inner webs 

 of tail-feathers witliout transverse bars. 



Wing, 14.90 - lo.OO ; tail, 8.r)0 ; ruhnen, .^u-l.OO; tarsus, 



2.10; middle toe, 2.1.5 -2.21. Hah. Northwest coast of 



North America, from Orefion to Sitka . . . var. ;)ca ?ei". 



B. Second quill longest; first with inner web euiarginated, the second with 



inner web not sintiated. Young without longitudinal stripes on lower parts. 



Adult and young stages hardly appreciably diflerent. 



Above plumbeous or black ; beneath black from the jugulum to the tiliii 

 with transverse bars of white, ochraceous, or rufous; throat and jugulinn 

 white, white and rufous, or wholly ochraceous, with a semicircular outline 

 posteriorly; tibiie, iinal region, and crissinn uniform deep rufous, or spotted 

 with black on an ochraceous or a white and rufous ground. Ailull. Plum- 

 beous above, the feathers darker centrally, and with obscure darker bars 

 posteriorly ; jugulum immaculate. Youikj. Black above, the feathers 

 bordered terminally with rusty, or else dark -jilumbeous witliout transverse 

 bars; jugulum with longitudinal streaks. 



2. r aurantius." Wing, 9.oO - 12.00 ; tail, 5.40 -- G.2o ; culmen, .90 ; 



1 Faho communis, vnr. me/anmjciiijs (Ooui.li). Faico communis. Lath. New S. Wales Dr. 



II, No. 4. Fa/co jiercgrinun, Vkj. Lixs. Trans. XV, p. 183. — In. Isis, 1830, 2(j0. — Honap. 

 Coiisp. 23, No. 2. Fnlco mchtmxjenijn, OouF.n, P. Z. S. pt. 5, 1837, 139. — In. Synop. 15. Austr. 

 pt. 3, pi. xl, fig. 2; Birds of Austr. I, pi. 8 ; Iiitr. U. Austr. 19. — OliAV, lien. H. ful. sp. «. — 



III. List. B. Brit. Mus. 51. — BoxAi'. Hov. Ziuil. 1850, 484. — Kaup, Moiiog. Fab,', in Jardiiie's 

 Coiitr. Orn. IS.'iO, 56. — Sriirr, Exp. Austr. App. 14. — Stkicki,. Orii. Syn. I, 1855, 84. — 

 Okay, Hand List, I, 1800, 19, No. 167. Faico uiaci-opus. Swains. An. Menag. 1838, 341. 

 Eight specimens exannneJ, including the types of Gol'Lu's figures and descriptions in the Birds 

 of .\ustralia. 



^ Fdico tniriiiitiiis, (5mi;i,. (Hufous-bcllii'd Falcon). Falco auriinfius, Omel. Sy.«t. Nat. p. 

 283, 1789. — Lath. Iml. Orn. p. 48, 1790, Gen. Hist. I, 289. — Uaud. Tr. Orii. II, 130. — 

 Smaw, Zoiil. VII, 194. — Stki'II. Zool. XIII, ii, 40. —Cuv. Keg. An. (ed. 2), I, 322. — Llxs. 

 Tr. Orn. p. 91. Bonat. Coiisp. Av. p. 25. — SntlcKl,. Orn. S-n. I, 89, 1855. Iliipolriovchis 

 aiii-diiHiis, Kai r, Feb. Falk. Mus. Senck. p. 257, 1845. Bidrnt, aiinnitius, S-'i'ix, Av. Bras. I, 

 17, 1824. FdIco dcirokucus, Te.mm. I'l. Col. 348, 1836. — Le.s.s. Man. Oiii. I, 79. — (ii:AY, 

 List B. Brit. Mus. 1844, p. 25 ; Cen. B. fol. sp. 12. — Bonap. Bcv. Zool. 1850, 480. Falco 

 rufijulnris (not of Daudin !) Ouav, List B. Brit. Mns. [>. 54, 1844. 



Sp. Chau. Adult (^, Co.sta Kicu ; foil. t!. N. Lawrence). Above bluisli-plunilieou.s, the 

 fc.itliors darker centrally ; anteriorly the black iiitrea-ses in extent, first«»caving the plumbeous 

 only lis n border to the l'eather.s, and then dropping it altogether, the head and napc^ lieing plain 

 black ; posteriorly the plumbeous iiredoiiiliiates, and shows a tendency to form transverse bars. 

 On the head and neck the l)lack occupies tlie whole upper and lateral jiortions, reiiching d( wn to 

 the throat, involving the whole of the checks and maxilla), which it covers in an angular patch. 

 I'riniaries and tail deep black ; tin' former iimiiaculate on their outer surface ; the latter crossed 

 by six (the last terminal) incompleti' very narrow bands of pure white, formed by transvei-sc? bars, 

 which touch neither the shaft nor edges of the feathers ; upper tnil-coverts crossed by about two 

 bars of jaire white. Immaculate aiva of the throat and jugulum deep rufous [Kistcriorly and 

 laterally, pure white anteriorly and centrally ; from the jugulum to the tibia;, and including the 

 entire lining of the wing, continuous black, with transvi'ise bars of white; tibia' plain rufous; 

 ei'issum mixed rufous and white, — the former predominating, — and tiiiekly marked with large 



vol. III. 17 



