BIRDS OF NORTH AND MIDDLE AMERICA 745 



on the thighs, lower abdomen, and under tail coverts to pale cinnamon- 

 buff or even pinkish buff, the sides and flanks, and to a much lesser 

 extent, the middle of the abdomen with transverse blackish, wedge- 

 shaped spots, the thighs and under tail coverts with indistinct 

 cinnamon spots. 



Juvenal male. — Light phase: Like the adult, but with more 

 blackish markings on the scapulars, interscapulars, and upper wing 

 coverts; often indistinguishable from older birds; cere and orbits 

 pale duU yellow; iris b^o^vn; bill pale blue darkening to slate-black 

 at tip; tarsi and toes dull yellow; claws black. 



Juvenal male. — Rufous phase: Similar to the adult, but with the 

 scapulars, interscapulars, back, rump, and upper tail coverts deep 

 argus brown more or less washed with slate and marked with cordate 

 black spots (in some specimens these parts are almost uniform argus 

 brown, in others they are numerously marked with black and exten- 

 sively washed with slate); middle of abdomen also often spotted 

 with brownish black; chin and middle of throat white; under wing 

 coverts white spotted with plumbeous-black. 



Juvenal female. — Light phase: Like the adult, but with the 

 breast, upper abdomen, and sides marked with narrow, small tawny 

 to pale sepia, elongate spots or streaks; the dark bars on the upper- 

 parts much more numerous and wider, the feathers of the top of the 

 head with very conspicuous black shafts; tail deeper and brighter — 

 almost chestnut; soft parts as in the young male. 



Juvenal female. — Rufous phase: Like the adult, but with the 

 breast, abdomen, and under wing coverts spotted transversely with 

 blackish wedge-shaped marks; the dark bars on the upper surface 

 broader, producing a darker, less rufescent, appearance. 



Natal down. — White. 



Adult male.— Wing 168-180 (174.6); tail 114-126 (120); culmen 

 from cere 12-13 (12.5); tarsus 34-39 (37.3); middle toe without 

 claw 20-23 (22 mm.).«° 



Adult female.— Wing 174-189 (183.4); tail 118-130 (123.4); culmen 

 from cere 12-13 (12.5); tarsus 35-42 (38.6); middle toe without claw 

 22-23.5 (22.8 mm.).«^ 



Range. — Resident in Cuba and the Isle of Pines. Very common 

 throughout its range. 



Type locality. — Cuba. 



Falco sparverius (not of Linnaeus) Vigors, Zool. Journ., i, 1825, 339; iii, 1827, 435 

 (Cuba). — d'Orbigny, in La Sagra, Hist. Nat. Cuba, Ois., folio ed., 1839, 36; 

 8vo ed., 25. — Hartlaub, Naumannia, 1852, 52, part (Cuba; crit.). — 



*" Sixteen specimens from Cuba and the Isle of Pines. 

 " Fifteen specimens from Cuba and the Isle of Pines. 



