478 BIHDB OK ILUNOIS. 



I A. la^optu aanoti -jobaniiit. Bill coinpiirullvitly nurrow iit Ihc Imsc luid eompn^sBod 

 termiuiilly. TurntiK not iiiori' tluiii 'i iin'lii-'ii. ISroiiat ni'ViT linniai'uliitf whito: no 

 rufous on upper piirts or tihiii'. Adult: Tail with itpvcml Imntls. Light phatr 

 with wliito prcviiiliuK. Il>l!« much lirokcn however, by dusky Rpotllnic, lhi> Rpols 

 ruthor roalesecd on pectoral rcj^lon. Melanittir jihate Horoctlnics uniform coal- 

 black (muro commonly dark brownish), with white lores, white undi-r slile of 

 quills, and lidht (itrayish or while) narrow banils on tall, Yimng: Terminal half 

 (or less) of tall Krayish brown, without bars, basal portion while (usually unvarii'd). 

 Light phanf urayish brown above, with <luBky streaks luid fulvous or bufTy edi;- 

 Incs: beneath ochraeeous or bulTy whitish, the belly and flanks usually dark 

 brownish; breast streaked with brown. MHlauinlic aijerimruf blackish brown, 

 sometimes nearly unifi>rm, but usually more or less streaked with fulvous edc- 

 inBS to the feathers. Mali-: Wing. 15.7.V16.80; tail. 9.0«-I0.nu: tarsus. 2. 75-2. HO; 

 Fiiiin'i': \Viin;.I(;.I.VlS.(Ki; tail.O.dO-U.iKi; tarsus. i80-S.iiO. 



U. A. ferrugineuB, Hill very broad, and somewhat depressed, at the base, the gape 

 almost "Ussirostral." Tarsus more than 3 inches. Breast usually immaculate 

 while (rufous in nu'lnnistie specimens); upper parts and tibin> rich nifous in 

 adults. Ailiilt. light pliaste: Upper parts and tibia' lino rufous, the former with 

 tear-shaped stripes, or spots, the latter with transverse bars of dusky. Tall whito 

 washed with ashy, and more or less stained with light rufous. Melanistic phase: 

 rrevailing color deep choi.'Ohite-brown. more or less varied with rufous; tail as 

 in the light phase. Young, light phase: Above grayish brown, the feathers edgcil 

 with ochraeeous or fulvous; til.iie white, usually more or less barred with dusky; 

 tail white only on basal portion and on inner webs, the terminal half (or more) 

 grayish brown, usually with several more or less distinct darker bars. Male: 

 Wing, 15.90-17.()0; tail, 9.,'H)-10.50; tarsus, 3.1l)-a.45. Female: Wing, 17.00-18.80; tall, 

 10., It)- 11. 00; tarsu.'4, 3.20-3. 10. 



Archibuteo lagopus sancti-johannis (Gmel.) 



AMERICAN ROUGH LEGGED HAWK, 

 Popular synonyms. Black Itough-leg; Black Hawk. 



Fahii .•iaittti-juhannin Gmel. S. N. i. 178S. 273.— Al.'I>. Orn. Biog. ii. 1S31. ;8I. 

 Buteo nancti-jiihannis Cuv. 1817.— Niitt. Man. 1,1832, 98. 

 Archihiiteo saticli-johaxnin Gbav. 1819.— Cass, in Baird's B. N. Am. 1858. ,33. -BAinu, 



Cat. N. Am. B. 1859. No. 31. 

 Archihiilen lagiipiis vnr. sancti-jnhanniit CouES. Key, 18?2, 218; Check List, 1874, No. 



356: B. N. W. 187(,361.— B, B. & R. Hist. N. Am. B. iii, 1874. .mi. 

 Archihnten lagopus sancti-johaiiiii.i UlDciw. Nom, N. Am. B. 1881. No. •H7.— Cot;B8, 

 2d Chock List . 1882. No. 525, 

 Falrii lagaiiii.i WiLS. Am. Orn, iv, 1821, pi. Iti, tig. 1 (wee BRfiNN).— AuD.B, Am. I831.pls. 

 I«C.422; Orn. Biog. ii. 18:tl, 277. 

 ISiiten lagopuK Sw, & Rich. F, B.-A. il.lS31,.'t;, pi. 28.-NUTT. Man. 1832,97.- AUD. B. Am. 



i. 1810. 4fi pi. 11. 

 Archihiilen lagopus Bp. 18.'>«.— Cass, in Baird's B. N. Am. lJvVS.:« — Baibd, Cat. N. Am. 

 B, 18.W. No. 30. 

 Fairo tiiger Wli.a. Am. Orn. i, 1812, pi. 53, llgs. 1,2. 

 Hab. WIio1<3 of North America, breeding in arctic and subarctic districts. (The true 

 A. lagopus occurs in western Alaska.) 



II. Normal plumage. 

 Sp. Chaii. Adiilt male (No. 4.3.073. Fort Resolution. Juno: J. Lockhnrt). Ground 

 color of the upper parts dull umber-clnereous. this more rufous on the shoulders, and 

 dull white on nape, si-apulars, inner secondaries, and upper tjiil-coverts; rump entirely 

 black, feathers bordered with whitish. All the feathers above with central oblong or 

 Irregular spots of black, this color predominating on top of head, and forming trans- 

 verse bands across the wing-coverts and secondaries; upper tail-coverts pure white. 



