I'Al.l'uMUJ'; TUK I'ALCO.NS. \'-]'J 



fore, il" this coiispiiiiDiis stivukiiiL; nl' tlic lucast is ioiiiid in nil iMiroiicaii 

 8]K'i'iiiiciis, llu; Ainciicaii imd is fiilitji'il In sc|i:iraliini us u vnrii'ty ; Imt if 

 tiic lucasi is i'wv iiiiiiiaculatc in iMiinpcaii cxamiilt's, liicii ihki/ihii must 

 sink iiitii a ]t\\\v >yiiniiviiii' ol iiiiiiiiniiii.-<. 'I'Iil' var. inilinini/i ni/t is dis- 

 tiiij^uislicd i'ntiii liiilli nniniiiidis ami nnalitin \\\ llie Idaclv aiiricidais, or liy a 

 yrcalcr anuaiiit nl' Idacix i>ii llio side dj' tlio iR!ci\, and l>y moie numcnuis 

 and nanowcr liars (in tlic under .suifaui'. In tlie iurnier I'l'aturc cxamiili's 

 nf (uiiihiiii I'ldui liic soullit'in nxlrcmity ol' Soutii Anu'iica a|i[)niai'li tiuito 

 (doscdy 1(1 tiic Australian lorm, as nii;,dil \w v\\)w\m\ I'mm tlio iclativti 

 j^od.yrapliical posilidu ol' the two iv^^ions. The var. uiinor is niiTidy tho 

 smalk'i' inlcrliiiiiical race of tiie Old World, perhaps licttcr (diaracteri/cd 

 thiiu the tro]iical Aniericau i'orm named /'. nii/rinji.-i jiy Cassin, the eliariie- 

 t(Ms of which ai'e so unimporlant, ami withal so inconstant, as to f'orhid 

 our reco^nizinji; it as a race ol' the same raiiic witii the others. 



List i)F .si'i:i;i.\m:.ns cxa.minkh. 

 Xaliiiiiul .Mii.Nciiiii, I."): liiisloii ."Society, 4 ; I'liilailclpliiii Aciulciiiy, "J'J ; Mas Miii Coiup. 

 ZikpI. .") ; Xi.'w Vdik .Mii.>ciiiii, :!; (J. N. I.iiw tciko, (i; R. lliil^'wiiy. .!. Toial, 8S. 



MiiiMiireiiifiih. 

 »x.; Wng. Tail. Ciitiiirn. Tarsii.i. \ Miilille Toe. Spfcimriui. 



'^ ' ii.:!0-i;3.no I o.uo - 7..'>o .7.".- .ho i.do-i.no 1.7s -2.0.') •>'.) j 



9 I i:!.(lO- 14.75 7.;!0-i).()0 .8.')- l.dii I.!),") - li.lo \M-2.20\ 28 



Var. ppiilel, KiDuvvw. 



BLACK PEREOBINE FALCON. 



.' / Accipilcrfiih-n iii'jn: liiass. Oni. I, :i:J7. ' .' Fn/oi iii'jn; (!mi;i,. S. N. 1789, 270. Fnlrn 

 jinhinijrii.i, ('a.-^s. IS. Cal. it Tex. pi. xvi (ihiik ligiiic). 



8p. CaAii. Ill colors almost cxailly similar 'o /•". (/i/r/dlnt, var. /iihniilara. Above con- 

 liniiDUsdaiU vaiKlyUi'-lirowii, apprnacliiiii;- lii-owiiisli-lilaclv on the head, wliicli is varicL^'atcd 

 only on the i;iilai- i-cj.'ii)ii, anil iiiclininj;' to lirayisli-hrowii on the tail : the whole siii'faco 

 entirely tVee IVoiii spots or markings of any kinil. iieneatli similar in color to llu" nppor 

 parts, Imt tlic t'eatliers eiiL;t>il with whitisli, this rather pretlominatin,!.' on th(( throat ; Hanks 

 luid tibiie witii roundish white spots; lower lail-eoverts Avith broad transver.se bars of 

 white. Lining,' of the wiiirr with leathers narrowly tipped with white: inner W(4)s of 

 primaries with narrow, traiisverso elliptical spots of (MM'am-color : inner webs ol' tail- 

 feathers with badly defined, irre<riilar, similar spots, or else with these wanting,', tin; whole 

 web beinir plain dnsky-brown. 



Xo. 12.1)22 ( 9 . Orejjron ; T. I!. I'eale). Wiiiij-, 15.(10; tail. 8.50; eulmeii. .!)5; tarsus, 

 2.10; middle toe. 2.15. (Fi<riireil by ("assiii as F. poli/iii/rxK. in Birds of California and 

 Texas, ])1. xvi.) 



No. 45,814 (9, Sitka, Alaska, .May, 18(i(i; V. Hischoll). Wim;-, ll.i)0; tail, 8.50; 

 tarsus, 2.10; middle toe, 2.20. The two similar in color, but in the latter the white 

 streaks on tho lower parts a little liroader, and the iiiiddlo of the auriuulars slightly 

 streaked. 



Had. Northwest coast of North America, Irom Oregon to Sitka. 



vol.. III. 18 



