452 



BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



or less) and tinged with cinnamomeous ; bill black; iris yellow to 

 orange-yellow; bare orbital space pale grayish blue, sometimes tinged 

 with red; legs and feet lake red; length (skins), 265-284 (275); wing, 

 142-145 (143.7); tail, 98-103 (101.5); exposed culmen, 15.5-17 (16.1); 

 tarsus, 28-31 (29.4); middle toe, 22-26 (24.2). « 



Adult female. — Similar to the adult male and not always distin- 

 guishable,^ but usually(?) somewhat duller in coloration, especially 

 the foreneck and chest, which are somewhat darker and less vina- 

 ceous; length (skins), 255-275 (263); wing, 129.5-143 (137.8); tail, 

 93-108 (98.1); exposed culmen, 15-17.5 (16.4); tarsus, 27-29 (28.1); 

 middle toe, 22-24.5 (23.3). « 



Young. — -Very different in coloration from adults. Above olive- 

 brown, including pileum, the interscapulars, scapulars, wing-coverts, 

 remiges, and upper tail-coverts margined terminally with light rusty 

 brown or cinnamon, the feathers of rump with pale buffy brown 

 terminal margins, the greater wing-coverts and proximal secondaries 

 sometimes with mesial streaks of light rusty brown or cinnamon; 

 foreneck and chest grayish brown or drab, the feathers margined 

 terminally with pale buffy; rest of under parts pale brownish buffy, 

 darker laterally, paler (pale dull buff to dull buffy white on center 

 of abdomen, anal region, and under tail-coverts). 



Yucatan (Merida; Chichen-Itza ; Buctzotz; Izamal; Temax; Tizi- 

 min). Tabasco (Montecristo ; Tlapa), Campeche, southeastern Vera 



o Foiir specimens. 



^ If determination of sex by collectors can always be trusted. 



c Nine specimens. 



Locality. 



MALES. 



Three adult males from Yucatan 



One adult male from eastern Chiapas (Teopisca) 



One adult male from British Honduras 



Thirty-two adult males oiL.f. brachyptera 



Five adult males of L. f. capitalis 



FEMALES. 



One adult female from southern Vera Cruz (San Andres Tuxtla). 



One adult female from Tabasco (Montecristo) 



Four adult females from Yucatan 



One adult female from eastern Chiapas (Huehuetan) 



One adult female from northeastern Guatemala (Toyabaj, 



Quiche) 



Twenty-seven adult females oi L.f. brachyptera 



Three adult females of L.f. capitalis 



Wing. 



143.3 



145 



141 



146.5 



151.9 



129.5 

 136 

 140.2 

 133 



140 



143.8 



149.3 



Tail. 



101 



103 



108 



107.2 



105.7 



95.5 

 95 

 98.9 

 94.5 



94.5 

 103.3 

 103 



Ex- 

 posed 

 culmen. 



16.3 



15.5 



16 



16 



17.6 



17 

 16 



16.7 

 15 



17 



16.2 



18.2 



Tarsus. 



28.8 



31 



28.5 



30.1 



31.8 



28.5 

 27 

 28.4 

 27.5 



27.5 

 29.4 

 30.3 



Middle 

 toe. 



23.7 



26 



22 



24.3 



24.2 



23 

 24 



23.6 

 23 



23 



24.1 

 24.8 



