FALCON] Ihi; — Til K FAU'nNS. ;}27 



Tkai.!, r. S. I'A-iil. i:x|.. 71, ISlf*. — r,;.\ii, llinls Musm, 73, 1S41. — fliHAi-n, lllnls 

 Lijii^' Island, II, 1SI4. — WiMiiHl. Sit. I':.\;il. Ziiti. i^ <()l<imil. 6.', l.s.'.a. — I'assin, II. 

 Calil'. A: Tcv. I, 111, 1^".4. — Dr. Kav, Zcil. N. Y. II, .1, pi. i, T. 1, IMl. - IIi.i;iiM. 

 r. It. It, llrpt. VII, yil, l.s.". — Ni;\vn. I'. I!. 1!. I!>lit. VI, 7:'., }>:>:. Wi;i;n. All. 

 OU. I'.m'. KS'-'(i. — liiii.iiM, ViiKi'l iMit.sihl. 17, iNill." <'As.>i. llinls N. Am. IS.W, 

 la. — C'ni.r. .'t SrcK. I'. It. 11. liipt. .\ll. ii, l.'.l, 18iio. —Cniis, I'roil. II. Ariz, la, 

 IStill. Ifii/i'ii'/ilM /I'lirmijiliiiliis, (Inw, Ihin.l List. I, Iti (ISiill). Fulcn aimtiilun, 

 (iMKi,. Sy>l. Niil. i'K'*, 17Mt. — I-Aill. Iml. Oiii. M, 17iMi; Syu. I, Ilii, 17S1 ; tii'ii. 

 Ilisl. I, '^ilii, l^Jl. -l»Ail). Tr. Oiii. II, 51, ISdd. — Vir.11,1.. Oi.s. Am. Si'iPt. I, 

 DO, 18(t7. Falcii i>!iijiirijus, Dai'D. Tr. Oni. II, i!'.', 18iM». fn/o, ns-si/ninim, Wii.;*, Am. 

 Oni. pi. Iv, f. -J {Jiir.), 1808. Faloi knanjUKln; I.AIII. (ii.'U. Hist. I, 'HI, 1821. 

 ;'('///((■ iilliieillii, F.viir.it, Faun. Hrn;nl. 53, 1780. Faku iMahinijluni, Arn. Mag. 

 Nat. Hist. si'V. 1, I, 18-'s, ll-i. — III. Oiii. Iliog. I, "i8 ; Iliids Am. pi. xi. — Ill:r.wi:ii, 

 (Wii.s.) Am. Urn. iis;i. — .Ia.mi;.^. (Wii.s.) Am. Oni. IV, 'Jtil. J/alinvtiii u-itshimjloui, 

 .lAiiii. (\Vii,s.^ Am. Orn. II, 1)2, — lin.NAP. List, 1838, 3. — (Iisay. <ien. M. .sp. 4. — 

 All). Synop. liirds Am. 10. —Cans. IJ. Cal. & Tex. 110. — In. Ilirds N. Am. 1858, 

 42. — SriiicKi.. Orn. Syn. I, 51, N'o. 82. Faico icnshiwjlonianua, Nt^TT. Ma.n. pi. 

 l.xvii. Ilalhd'tiis kucucrpliKliis, liliKWini, Oulogy, 1851, 48, pi. iv, f. 37. 



Sp. CuAii. AiIhII. Entire liciicl aiul iit'ck, iippiT nnd lower tiiil-covorts, nnd tail, im- 

 mnciilalc pure while. Itest of the phiniafre- browni.sh-ldiiek, the I'ealiiers liidinj; toward 

 the edj,'cs, these paler hordeis ))ein,u' iiio.st eoiispic'iioii.s on llie ujiper surt'aee. Primaries 

 uiiiioriii deep bhiek, Dill, core, superciliary shield, and feet, deep chrome-yellow ; iris 

 Naples-yellnw. Mu'c (12,1)17, Phihuleiphia; C. Diexler). Win;;, 'J'-'.OO; tail, lO.'jO; eul- 

 Mieii, l.!)0; top ol' cere, .80; deptli of bill, l.:!(1: tars^us, 3.00; iiiithlle toe, 2.C0; outer, 

 2.00; inner, 1.50; posterior, 1.30. Wiiiif-foriniila, 3 =■■= 4 - 5, 2-(>; 1 ■= 7. Femuh 

 (11,!)8G, Philadelphia; C. Divxler). Wiuj., 2.").00; tail, 12.7"); culmen, 2.20; top of cero, 

 .80; tarsus. 3.10; middle toe, 2.85. Wiufi-formula, 3 = 4,5-2-0-7-1, 8. Yunng. 

 .Second year (?) (Xo. 58.1)77, Mount Carniel. Wabasli County, Illinois, Dee.; D. RidL,'way). 

 Head and neck lirowiiish-blaek, white beneath the surliur, tiie iienicilhitu ones of the nape 

 tipped with ])alo brown. Prevailinjj: color of other portions blackish-brown, inclining to 

 umber on the dor.sal refrion, wing-covcrts, and lower p.irts; all the feather.s white at their 

 rools, this niueh exposed on the lower parts, where the brown forms teai-shaped terminal 

 s|)ots; axillars and lining of the wing white, each feather of the hitter region with a 

 medial lanceolate .stripe of blackish- brown. Primaries and tail brownisli-black ; inner 

 wcbi? of secondaries and tail-feathers .epatterod longitudinally with creaniy-whito. Bill 

 and cere lilack; iris brown; (cet yellow. Wing, 25.50; tail, 15.00; culmen, 2.10; tarsus, 

 3.10; middle toe, 2.G0. 



Youn<i, first year (No. 41,595, Ea.storn United States?). Whole plumage nearly uni- 

 formly black, this very continuous above; beneath, the b.asal white is much oxpo.sed, pro- 

 ducing a somewhat spotted appearaii(;o. Primaries and tail deep black, the inner webs 

 of the hitter sprinkled with cream-color. 



l'o)(H(/ i'» (/r»ci) (Washington, D. C). Downy covering imiform deep sooty-gray; the 

 sprouting feathers on wi.igs, etc., all brownish-black. 



Specimens from the Pacific Coast have the plumage rather deeper black: but scarcely 

 any other dill'erenees are appreeialilc. Me.isurements of specimens are as ibllows: — 



"Male" (?) (15,838, Sitka; Bischonf). Wing, 24.50; tail, 12.50; culmen, 2.00. 



/>;nf(/e (4.').8.35, " " ). " 25.00; " 12..50: " 2.20. 



Of tlie.se, the male is continuous dec;- black, the head, lu k, tiiil, and tail-coverts pure 

 white in sharp contrast; the female is less continuously black. — more so, however, than 

 in eastern specimens; the white portions are as pure as in the male. 



An immature bird (!),130. Shoahvater B.iy, W. T., Feb. ; Dr. Cooper) is .ilmost like the 

 Illinois specimen described, but is somewhat larger, measuring, wing, 2G.00; tail, 15.00; 



