BIRDS OF NORTH AND MIDDLE AMERICA. val 
Adult female.—Pileum and hindneck plain buffy olive-brown or 
raw umber; the back, scapulars, rump, and upper tail-coverts 
lighter and less brownish olive; tail deep brown (sepia), the edges of 
the rectrices brighter, more russet brown; general color of wings olive, 
the tips of wing-coverts (broadly but indistinctly) more cinnamon- 
brownish; sides of head, chin, and throat buffy, the former more or 
less suffused with olive or olive-brown; rest of under parts tawny- 
buff or clay color, deeper and browner, or tinged with olivaceous, on 
sides and flanks; under wing-coverts deep buff or tawny-buff; inner 
webs of remiges broadly edged with paler buff; maxilla horn ‘brown 
or dusky with paler tomium, mandible pale dull yellowish (grayish blue 
to flesh color in life); legs and feet light horn color (bluish gray or 
grayish blue in life); length (skins), 88-104 (96); wing, 51-56.5 (54.4) ; 
tail, 31-37.5 (34.6); culmen, 12-14 (13.1); tarsus, 15.5-17 (16.2); 
middle toe, 9-10 (9.7).% 
Immature male.—Precisely like the adult female in coloration. 
(Older specimens show more or less of black on the throat, the lateral 
portion of which, together with more or less of sides of head, are 
slate-gray.) 
Young male (first plumage).—Similar to the adult female but back 
tinged with dark purplish brown, and under parts of body clouded with 
dark purplish brown (seal brown or dark chocolate), the chest nearly 
uniformly of this color. 
Young (nestling) —Above uniform vandyke brown, below uniform’ 
russet. 
Guatemala (Choctfim and Samayoa, Vera Paz), Nicaragua (Mata- 
galpa), Costa Rica (Turrialba; Barranca; Dota; Naranjo de Cartago; 
Grécia; Guayabo; Carrillo; Pozo del Pitaél; Pozo Aztl de Pirris; 
Boruca; Lagarto; Térraba; El Generdl; La Vijégua; Tenério), 
Panamé (Santiago, Santa Fé, Chitra, and Calovévora, Verégua; 
Boquete, Divala, and Volcan de Chiriqui, Chiriqui) and through 
a Fifteen specimens, from Guatemala, Costa Rica, and Panama. 
Locality. Wing. | Tai. | Cul | Tar he 
men. sus. 
MALES. 
Ten adult males from Costa Rica 56.8 36.2 13.3 16.2 9.8 
Ten adult males from Panamé....-..........-2...2--25- = 56.1 36.2 13.2 16.3 9.6 
Two adult males from Colombia..............-.-.-----------++ 60 34 14 16 9.7 
One adult male (of M. meneiriesii?) from e. Ecuad6r........-.- 54 28 12.5 16.5 9.5 
FEMALES. 
Two adult females from Guatemala..............2-...---02 222s 52 36.2 12.2 16 9.5 
Ten adult females from Costa Rica......--.....--2+++202-e-2eee 54.4 33.9 13.2 16.3 9.7 
Three adult females from Panamdé.................222-22e eee ee 55.2 35.9 13.2 16 9.7 
