STIUGID-E-TIIE 0\^-LS. 65 



Bubo virginianus, vav. pacificus, Cass. 



Bubov!r',iiiu'iivisjx(c:jiai^, Cassis, lUnls N. Am. IS.JS, 49. Hn'm rhvjiuwiiuD, vnr. iiacifl- 

 riis. ('cii:i;s, Ivpy, 187^, 202. Bubo t'lrrjiiiiaiuiii, Cool'. A; SiCKLEV, P. R. lii'pt. XII, 

 II, IStJO, l.')l. — I.oi:i>, I'r. 1!. A. .S. IV, HI (Biitisli t'oluiiil.ia). mALi.& IUnnistf.I!, 

 ■l"r. t'liiuii^'o Ac. I, 1SG9, '21-2 (Aliiskn). — ?1mn.s( ll, Abli. Nut. HI, 2G (Alaska). 



Sr. CliAii. The opposite cxtiviiif from var. (nrlicim. Tlic lilack .sliiidcs piviloininating 

 and the white niottlinfi ropIaciMl l.y i)iilo ^'i-ayi.sh ; the loiiii oi' the niotthiif!; al.ovo is lc.<;s 

 rpr'iilailv transverse, lieinir ol)h(pie or loiiiritmlinal, ami more in lilotehes than in the 

 otlicr styles. The primary eoveits are plain lihu.-k; the priniarie.s are mottled frray .iiifl 

 plain black. On thi^ tail the mollliii!,' is very dark, the lighter niarkinj,'.'! on tlio midillc 

 feathers beinir fljrown into lonjritndinal ,spla.shes. Beiieatii, the hlack bars are nearly as 

 wide as the while, hilly donlil(> their wi<ltli in var. nrcticiiK. The leys are always thieldy 

 barred. The linin,'.' of the wiiifrs is heavily barred with black. Face dnll f?rayish, barred 

 with dusky: eai-tnfts almost wholly l)lack. 



g (I."),842, Sitka, Alaska, November, ISOC; Ferd. liiseholf ). Winy-formnla. o, 2 = 4- 

 o- 1, n. Winir. M.Oil: tail. 8.00; cnlmen, 1.10; tarsus, 2.0.'); middle toe. .!);'). 



Face with oliM'ure l)ars of black; oehraeeons of the bases of the feathers is di.^tinct. 

 There are seven black spots on the jirimaries, eijrht on -the tail; on the latter exceeding 

 the paler in width. 



9 (■JT.OT-'). Yukon Itiver, mouth Poreiipine, April Ifi, 18(il ; R. Kennicott). Wing- 

 fornnila. ;'., 2 = 4-."i- 1, <). Wing, 1(5.00; tail, 0.80 ; cnlmen, 1.1.') ; tar.sns, 2.00. Eight 

 Ijlack spots on primaries, neycn on tail. 



Hah. Pacific coast north of the Coluniliia; Labrador. A northern littoral form. 



A specimen fVoiii L-ibi-mlor (:U,9r).S, Fort Niscnpee, II. Connolly) i,s an 

 e.Ktrcnie e.\aini)le of tliis well-marked variety. In this the nifoti.s is entirely 

 absent, the ])lumiio;e consisting wholly of brownish-black and white, the 

 former predomiiiiiting ; the juonltim and the abdomen medially are con- 

 spicuously snowy-white ; the black bars beneath are liroad, and towards the 

 end of each feather they become coalesced into a prevalent mottlino', form- 

 ing a spotted ajjpearauce. 



Another (1 l,7n2, Simiahmoo, Dr. ('. I>. Kenncrly) from Washington Ter- 

 ritory has the black even more prevalent than in the last, being almost 

 continuously uniform on the scapulars and lesser wing-coverts ; beneath the 

 black bars are much sulfused. In this specimen the rufous tinge is present, 

 as it is in all except the Labrador skin. 



IIaiuts. The Great Horned Owl has an extended distribution throughout 

 at least the whole of North America from ocean to ocean, and from Central 

 America to the Arctic regions. Throughout this widely extended area it 

 is everywhere more or less abundant, except where it has been driven 

 out by the increa.sc of poptilation. In this wide distribution the .species 

 naturally assumes varying forms and exhibits considerable diversities of 

 coloring. These are jirovided with distinctive names to mark the races, 

 but should till be regtirded as belonging to one species, as they do not pre- 

 sent any distinctive variation in habit, 

 vol.. III. 



