FALCONID-E — THE FALCONS. 133 



bands apparent; tail distinctly tipped with ochraeeous-white. Inner web of longest 

 primary with thirteen, more reddish, transverse spots. White of neck extending 

 obliquely upward and forward toward the eye, giving the black cheek-patch more prom- 

 inence. Markings beneath as in the male. Wing-formula the same. Wing, 14.50 ; tail, 

 7.00: tareus, 1.95; middle toe, 2.10; culmcn, .95. 



Jin-. ((J, 53,19.3, Truckee River, Nevada, July 24, 1867 ; R. Ridgway : first plumage). 

 Above plumbeous-black, tail more slaty. Every feather broadly bordered termi- 

 nally with dull cinnamon ; these cre.scentio bars becoming gradually broader posteriorly, 

 narrower and more obsolete on the head above. Tail distinctly tipped with pale cinna- 

 mon, the inner webs of feathers with obsolete transverse spots of the same, the.se touch- 

 ing neither the edge nor the shaft ; scarcely apparent indications of corresponding spots on 

 outer webs. Region round the eye, and broad " mustaclie " acros.s the cheeks, pure lilack, 

 the latter more conspicuous than in the older stages, being cut ofT posteriorly by the 

 extension of the cream-color of the neck nearly to the eye. A broad strri^e of pale 

 ochraceons running from above the ear-coverts back to the occiput, where the two of 

 opposite sides nearly meet. Lower parts purplish cream-color, or rosy ochraceous-white, 

 deepest posteriorly ; jugulum, breast, sides, flanks, and tibiae with longitudinal stripes of 

 plumbeous-black, these broadest on flanks and abdomen, and somewhat sagittate on the 

 tibiie ; lower tail-coverts with distant transverse bars. Lining of the wing like the sides, 

 but the markings more transverse ; inner web of longest primary with nine transverse 

 purplish-ochre spots. Wing-formula, 2 - 1 .3. Wing, 12.50 ; tail, 7.00. Length, 16.50 ; 

 expanse, 39.25. Weight, H lbs. Basal half of bill pale bluish-white, cere rather 

 darker; terminal half (rather abruptly) slate-color, the tip deepening into black; iris 

 very dark vivid vandyke-bro-nn ; naked orbital space pale bluish-white, with a slight 

 greenish tint ; tarsi and toes lemon-yellow, with a slight green cast ; claws jet-black. 



Hab. Entire continent of America, and neighboring islands. 



Localities : Guatemala (Scl. Ibis I, 219) ; Veragua (Salv. P. Z. S. 1867, 158) ; Sta. Cruz 

 (Newton, Ibis, I. 63) ; Trinidad (Taylor, Ibis, 18G4, 80) ; Bahamas (Bryant, Pr. Bost. 

 Soc. 1859, VII) ; Cuba (Cab. Journ. II, Ixxxiii) ; (Gcxdl. Repert. 1865, 225) ; Jamaica, 

 (Gosse, B. Jam. 16; March, Pr. Ac. N. S. 1S63, 304, et Mus. S. I.); Ti.-rra del Fuego 

 (Sh.\rpe, Ann. & Mag. N. H. ; " F. cassini, Sharpe "). 



The young plumage above described correspond.s e.xactly with that of 

 young iKirgrinus from Europe, a comparison of tlie specimen above described 

 with one of tjie same age from Germany (ri4,064, Schliiter Col.) showing no 

 differences that cau be expressed. ]\Iany American specimens in this plu- 

 mage (as 19,397, Fort Simpson) show a wa.sh of whitish over the forehead 

 and anterior part of the crown ; having before us but the one specimen, we 

 cannot say whether or not tliis is ever seen in the European l)ird. Speci- 

 mens more advanced in season — ])erhaps in second year — are colored 

 as follows : The black above is more brownish, the feathers margined 

 with pale brown, — these margins broader, and aijproaching to white, on the 

 upper tail-coverts ; the tail shows the ochraceous bars only on inner webs. 

 The supraoral stripe of the youngest ]ilumage is also quite apjiarent. 



A still younger one from the same locality (Xo. 37,397) has the upi)er 

 jdumage similar to the last, the pale edges to the feathers, however, more 

 distinct ; tail with conspicuous spots. "White beneath clearer, and invading 

 the du.sky of the head above as far back as the middle of the crown ; the 

 supraoral stripe is distinct, scarcely interrupted across the nape. 



