788 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 
wing, 113-130.5 (121.5); tail, 114.5-135.5 (126.1); culmen, 15-17.5 
(16.7); tarsus, 12.5-15.5 (18.6); inner anterior toe, 12-14 (13.2).¢ 
Immature male—Similar to the adult male but lateral rectrices less 
regularly barred (the pattern essentially intermediate between that 
of the adult male and that of adult female), wing-coverts more 
coarsely vermiculated, and chest with greater or less intermixture of 
dull slate color. 
Young male (nestling).—Similar to the adult female, but the 
general slate color darker and more sooty, pileum black, and with 
wing-coverts and secondaries more irregularly barred with white. 
Southeastern Mexico, in States of Tamaulipas (Tampico), Vera 
Cruz (Cérdova; Orizaba; Jalapa; Omealca; Uvero; Motzorongo; 
Colipa; Misantla; Los Cerillos; Atoyaic; Playa Vicente; Valle Real; 
Pasa Nueva), Puebla (Metlaltoyuca), Mexico (‘near City of Mexico’’), 
Oaxaca (Guichicovi; Choapém; Cacoprieto; Chimalapa; Santa 
Efigénia), Tabasco (Teapa), Chiapas (Huehuetan; Palenque; Tapa- 
chula), Campeche (Yohaltan) and Yucatan (La Vega; Shkolak; 
Peto; Izam4l; Calotmé]l; Tunkas; Chichen-Itza) and southward 
through Guatemala (Chocttim; Yaxcamnél; Chiséc; Teleman; Toli- 
man; Duefias; Volcan de Fuego; Alotenango; Retalhuleu; Mazate- 
nango; Santo Tomas; Gualén, Zacapa; Patulil, Solola; Naranjo), 
Salvadér (Volcan de San Miguél), Honduras (Omoa; Yaruca; Copan), 
Nicaragua (Matagalpa; San Rafaél del Norte; Volcan de Chinan- 
dega; San Carlos; Leén; La Libertad, Chontales; Sucuyé; Rio 
Escondido), Costa Rica (La Palma de Nicoya; San Mateo; Turrialba; 
Birris de Cartago; Naranjo de Cartago; Cartago; San Juan; Alajuela; 
Las Trojas; Jiménez; Guaitil; San José; Angostura; Turrialba; Juan 
Vifias; Bonilla; Guayabo; Pigres; Boruca; Barranca de Boruca; 
a Thirty-seven specimens. 
F : Cul- Inner 
Locality. Wing. | Tail. | jen, |Tarsus.| ante- 
rior toe. 
MALES. 
Six adult males from Vera Cruz (5) and Puebla (1)..........-- 126.4 | 129.7 16.8 14.1 14.1 
Five adult males from Oaxaca (4) and Tabasco (1).. 123:7 | 125.1 16.8 13.5 13.5 
Nine adult males from Yucatén.........-.-..-----..0022222 0+ 124.3 | 124.8 16.7 13.6 13.6 
Five adult males from Chiapas (2) and Guatemala (3).....-.-- 122.2 | 123.6 16.4 13.7 13.5 
Four adult males from Honduras............-22.0-220- eee eee 124.2] 125.5 16 14 13.9 
Ten adult males froin Costa Rica...........2...2-.2--- eee eee ee 119.2] 119 16.5 13.4 13.7 
Ten adult males from Panamé, 115.7] 118.3 16.6 12.9 13 
Three adult males from Colombia ee--[ 115.7] 128.2 16.3 12.2 12.7 
One adult male from western Ecuad6ér (Guayaquil) 118 118 16 13 12 
FEMALES. 
Five adult females from Vera Cruz.......-.--- 00-0002 eeeeee eee 125.1 | 130.6 16.4 13.8 13.5 
Three adult females from Oaxaca.......--.---.2.eeeee eee e eee 124.3! 125.7 16.5 13.7 13.3 
Four adult females froin Yucatan..........- 2.0222 -eee eee eeees 123.9 | 131.7 15.9 13.7 13.7 
Seven adult females from Chiapas (1) and Guatemala (6).......| 123.9 | 127.3 16.1 14.2 13.1 
Two adult females from Honduras...........------2-+---0-- eee 128.2 | 131.7 16.7 14.2 13.7 
Ten adult females from Costa Rica...........----- seoovevecenp 119.9 | 123.7 16.3 13.4 13 
Five adult females from eastern Panamdé, 114.6 | 120.1 16 12.6 12.6 
One adult female froin western Ecuad6ér (Guayayuil).......... 117 120 15.5 12.5 13 
