BIRDS OF NORTH AND MIDDLE AMERICA 743 



Cerchneis sparveria peninsularis Thayer and Bangs, Condor, ix, 1907, 136 (Ro- 

 sario and Santa Ana, Lower California).— Oberholser, Auk, xxxiv, 1917, 

 201.— SwANN, Synopt. List Accip., pt. 4, 1920, 154.— American Ornitholo- 

 gists' Union, Auk, xl, 1923, 518 (noraencl.; crit.). 



Cerchneis sparverius peninsularis Swann, Synop. Accip., pt. 4, 1922, 224. 



FALCO SPARVERIUS TROPICAUS (Griscom) 



Guatemalan Sparrow Hawk 



Adult male. — Similar to that of Falco sparverius sparverius, but with 

 no hazel patch on the crown, slightly darker slate on the head, and 

 slightly darker hazel on the upperparts; smaller, the breast whitish 

 or only slightly washed with pale fawn color. 



Adult female. — Similar to that of the nominate race, but with less 

 (sometimes no) hazel on the crown, and with the ventral streaks 

 averaging slightly darker, Saccardo's umber to pale sepia, and smaller. 



Juvenal. — Young birds differ from adults of the same sex, in the 

 same way as do those of the typical race. 



Natal down. — Unknown. 



Adult male.— Wing 171-174.5 (171.7); tail 117.2-125 (121.6); 

 culmen from cere 11-12 (1 1.5) ; tarsus 31-35 (33.4) ; middle toe without 

 claw 20-23 (21.4 mm.). ^* 



Adult female.— Wing 180-182.5 (181.5); tail 124-128 (125.8); 

 culmen from cere 12; tarsus 35; middle toe without claw 21.5-22 

 (21.8 mm.).^^ 



Range. — Resident from the interior of Chiapas (Motozintla, 

 Teopisca, San Crist6bal) and the central arid portion of Guatemala 

 (Capetillo, Antigua, Panajachel, Lakes Atitl^n, and Amatitldn) to 

 northern Honduras (La Fior, Archaga; Subirana, Department of 

 Yoro; Rancho Quemado). 



Type locality. — Antigua, Guatemala. 



Cerchneis sparveria tropicalis Griscom, Amer. Mus. Nov., No. 414, 1930, 1 (orig. 

 descr.; Antigua, Guatemala); Bull. Amer. Mus. Nat. Hist., Ixiv, 1932, 165 

 (Antigua, Panajachel, and Lake AmatitMn, Guatemala; and n. Honduras 

 just s. of Quirigud, Guatemala). 



Falco sparverius tropicalis Peters, Check-list Birds of World, i, 1931, 303. 



falco sparverius SPARVERIOIDES Vigors 



Cuban Sparrow Hawk 



Adult male. — Light phase: Generally resembling lighter-colored 

 examples of Falco sparverius sparverius, but much paler, the inner 

 webs of the primaries mainly white, the dusky bars not extending 

 more than halfway across the webs; crown ^vith no chestnut patch; 

 the "mustache" across cheeks indistinct or obsolete; the superciliary 



^8 Five specimens, including the type, from Guatemala and Honduras. 

 '» Three specimens from Guatemala. 



