NATURAL SCIENCES OF PHILADELPHIA. 147 



Female. Above, brownish plumbeous, lighter and more bluish than in eolum- 

 ^r/tw, feathers becoming rusty toward margins, ami with more Conspicuous 

 black shait-lmes. Tail with tight narrow bands of fulvous-ashy, the nrsl 

 three concealed. Primaries with ten transverse oval spots of pinkish-ochre 



on inner webs, and indications of corresponding light spots on outer webs of 

 inner quills. Conspicuous " moustache,'' as in the male. 



Measurements of 9. (Germany.) Wing, 9-00; tail, 5-70; tarsus, -95 ; middle 

 toe, L16. 



B. Adult male brown like the female. 



3. riciiardsoxii. (Hab. Interior of N. Am. 



Male. Much lighter, more earth;/ brown than females of two preceding. 

 Head very light colored, above, approaching white anteriorly; cheeks with the 

 streaks exceedingly fine and scattered. Tail crossed with six sharply defined, 

 perfectly continuous bands of ashy white. Inner webs of primaries with 

 eight whitish spots. Pectoral markings broad, sharply defined, clear light 

 ochraceous-brown, with black shaft-lines, stripes broadest on the Hanks. 



Female. Generally similar to the male. All the feathers above with pairs 

 of rounded ochraceous spots on opposite webs ; secondaries crossed with three 

 bands of ochraceous; bands of the tail pure white, six in number. 



Measurements of 9. (58983, Colorado Ter.) Wing, 9-00; tail. 6-10; tarsus, 

 1-40; middle toe, 1-51. 



Falco (Tixnuxculus) lkucophrys. 



Tinnunculus leucophrys, Ridgway. 



Tinnunculus sparveroides (not of Vigors!), Lawrence, Ann. Lye. N. Y. I860, p. 



1. (In part; light individuals ) 

 Falco sparvcrius (not of Linn. !), D'Orb., R. Sagra, Hist. Nat. Cuba, p. 25 (pro- 

 bably). Vig., Zool. Journ. I, 339 ; III, 435. 

 Hab. Cuba and Santo Domingo. 



Adult Male. (34244, Remedios Cuba, Dec. 14, 1863, N. H. Bishop.) Head 

 above pure, fine bluish ash, becoming (broadly) white on forehead; the 

 leathers with delicate shaft-lines of black. Nape, back, scapulars, rump, up- 

 per tail-coverts and tail rich purplish rufous (almost exactly as in sparverius); 

 no bars on dorsal region, except a very few across ends of larger posterior 

 scapulars. Terminal band of tail light rufous, -30 in width : Bubterminal zone 

 of black, very regular, -55 in widtli ; lateral feather, with outer web and end 

 of inner, reddish white, the black subterminal band crossing the inner web 

 only; inner web anterior to this, continuous rufous; shafts of tail feathers 

 rufous. 



Wings fine bluish ash, like the crown ; middle and lower coverts with a very 

 few elliptical, longitudinal specks or touches of black on the shafts; seconda- 

 ries passing terminally into white, their exposed basal half pure black; pri- 

 maries pure black, exposed edges of inner webs paler. 



Whole under surface of wings immaculate pure white, with a faint delicate 

 reddish tinge ; iuuer webs of primaries serrated along the shaft with dusky. 



Forehead and superciliary stripe (broadly and sharply defined against the 

 bluish of the crown,) whole side of the head (including lores and ear-coverts) 

 and entire lower parts, continuous, immaculate, pure white, with a delicate 

 orange tinge, except anteriorly. 



The " moustache " 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 pictures of the head are, however, as in sparverius. 



Wing formula 2, 34, 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 difl'ers from the 



1870.] 



