FALCONID.E — THE FALCOXS. 161 



Synopsis of the American Species. 



A. Back ahvays entirely rutbus (with or witliout black bars.) Lower parts 

 white, or only ting'ed with ochraceous; front and aurioulars <listinctly whitish. 



a. Inner webs of primaries barred entirely across, with white and dusky; 

 "mustache" across the cheeks conspicuous ; no conspicuous superciliary stripe 

 of white. 



1. T. sparverius.' Crown bluish, with or without a patch of rufous. 

 (J. Wings and upper part of head slaty, or ashy-lilue ; scapulars, back, 

 rump, and tail reddish-rufous; primaries, basal half of the secondaries, 

 and a broad .subterminal zone across the tail, black. 9- The liluish, 

 except that of the head, replaced by rufous, whieli is everywhere barred 

 with blackish, and of a less reddish cast. Hah. Entire continent of 

 America, also Lesser Antilles, north to St. Thomas. 



b. Inner webs of primaries white, merely serrated along the shaft wnth 

 dusky; '•mustache " obsolete or wanting; a conspicuous superciliary stripe 

 of white. 



2. T. leucophrys.- Similar to sparverius, except as characterized 

 above. Huh. Cuba and Hayti. 



1 A sjTiopsis of the geographical raiu's of T. sparverius comes after the remarks on that 

 species, page li86. 



2 Falco (Tinnunculus) Icucojyhriis. Tinnunculus spai-veroides (not of A'igors 1), L.iWKEXCE, 

 Ann. Lye. N. Y. 18l30, p. 1 (in part ; light individuals). Falco simrverius (not of Linn.!), 

 D'Orb. R. Sagra, Hist. Nat. Cuba, p. 25 (probably). Vic Zool. Journ. I, 339 ; IH, 435. 

 Tinnunculus leucophrys, Ridgway, Pr. Ac. Nat. Sc. Plul. 1870, 147. Hah. Cuba and Hayti. 



Adult ^ (34,244, Remedies, Cuba, December 14, 1863 ; N. H. Bishop). Head above pure, fine 

 bluish-ash, becoming (broadly) white on forehead ; the feathers with delicate shaft-lines of black. 

 Nape, back, scapulars, rump, upper tail-coverts, and tail rich purpli.sli-rufous (almost e.xactly as 

 in S2>a)'i'crius) ; no bars on dorsal region, except a very few across ends of larger posterior scapu- 

 lars. Terminal band of tail lii/ht rufous, .30 in width; subterminal zone of black, very regular, 

 .55 in width ; latei'al feather, with outer web and end of inner, reddish-white, the black subter- 

 minal band crossing the inner web only ; inner web anterior to this, continuous rufous ; shafts 

 of tail-feathers rufous. Wings tine bluish-ash, like the crown ; middle and lower coverts with a 

 veiy few elliptical, lonrjiludinal specks or touches of black on the shafts ; secondaries passing 

 terminally into white, their exposed basal half pure black ; primaries pure black, exposed edges 

 of inner webs paler. Whole under surface of wings immaculate pure white, with a fiiint delicate 

 reddish tinge ; inner webs of primaries serrated along the shaft with dusky. Forehead and super- 

 ciliary stri])e (broadly and sharply defined again.st the bluish of the crown), whole side of the 

 head (including lores and ear-coverts), and entire lower parts, continuous, immaculaie, pure 

 w-hite, with a delicate orange tinge, except anteriorly. The "mustache" is but just indicated 

 by some blackish touches, and in some individuals it is wanting entirely, while in all it is very 

 restricted in width ; the other black markings of the head are, however, as in sjyarverius. Wing- 

 fnrmula, 2, 3-4, 1. Wing, 7.00; tail, 5.00; tarsus, 1.30; middle toe, .90; culmen, .46. A 

 specimen in Mr. Lawrence's collection, which with others he has kindly lent me for examination, 

 is in beautifully high plumage. It differs from the type in having the white of the lower parts 

 tinged, or rather stained, with a beautiful, delicate rufous, or almost a salmon-ormige. The ter- 

 minal band of the tail also inclines decidedly to this color, while the white of the under surface 

 of the wing (particularly towards ends of secondaries and primaries) is tinged with a more pinkish 

 shade of the same. Another of Mr. Lawrence's specimens diH'ers in the clearer white beneath 

 (that is, with less reddish tinge, — the pureness and continuity does not vary), which extends 

 entirely around the neck, giving a sharper definition to the black pattern. The " mustache," 

 however, is almost entirely absent ; the black transverse spots on larger posterior seainilars are 

 rather more conspicuous, and the terminal band of the tail is more purely white. 



5 (31,984, Cuba, J. Ackhurst). Generally similar to sparrenus, but rufous brighter, the bars 



VOL. III. 21 



