BIRDS OF NORTH AND MIDDLE AMERICA. 



527 



Adult feiiiaJe. — Above olive or olive-l)rownish, the feathers very 

 indistinctly darker centrally: wings and tail dusky, with lighter olive 

 or olive-brown edgings; under parts brownish bufly, paler on abdo- 

 men (sometimes on throat also), the chest with rather broad cuneate 

 streaks of duskv grayish brown, the sides and flanks with narrower, 

 more linear, streaks of the same; maxilla dusky brown, mandible 

 much paler; legs and feet horn brownish; length (skins), 90.17-106.17 

 (98.81); wing, 43.69-50.80 (47.24); tail, 35.05-44.45 (40.13); exposed 

 culmen, 9.40-10.16 (9.91); depth of bill at base, 6.86-7.37 (7.03); tar- 

 sus, 14.22-15.75 (14.99); middle toe, 9.65-11.18 (10.41).^ 



Young. — Verv similar to adult female, but middle and greater wing- 

 coverts and tertials margined terminally bv brownish buii'y or dull 

 tawny. 



Southern Mexico, in States of Vera Cruz (Jalapa, Jico, San Andres 

 Tuxtla), Puebla (Huehuetlan, Atlixco), Mexico (valley of Mexico), 

 Morelos (Yautepec). Sinaloa (Mazatlan. Presidio), Jalisco (Ixtapa), 

 Colima, Oaxaca, and Chiapas (Chicharras, Ocuilapa), and Territory of 

 Tepic (Santiago), southward through Central America to western and 

 central Ecuador, Guiana, Trinidad, and Tobago; island of Grenada, 

 Lesser Antilles. 



^ Seven specimens. 



Average measurements of specimens from different localities are as follows: 



Loealily. 



Wing. 



Tail lExposed 

 ^*^'- culmen. 



Depth 

 of bill 

 at base. 



Tarsu.s. 



Middle 

 toe. 



MALES. 



One adult male from Grenada, West Indies 



Two adult males from Tobago 



Two adult males from Trinidad 



Two adult males from Sa vanilla, Colombia 



One adult male from Demerara, British Guiana. 



One adult male from Costa Rica 



Three adult males from Honduras 



Five adult males from Guatemala 



Eight adult males from Yucatan 



Four adult males from southern Mexico 



FEMALES. 



Two adult females from Isthmus of Panama 



One adult female irom Nicaragua 



One adult female from Honduras 



Three adult females from southern Mexico 



50.04 

 49.53 

 48.26 

 50.29 

 49.28 



40.64 

 43.18 

 37.85 

 43.18 

 41.66 



9.40 

 10.16 

 10.41 

 10.13 



9.65 



15. 49 

 15*. 75 

 15.24 

 15.75 



10.67 

 10.41 

 11. 18 

 10.41 



10.41 

 10.67 

 10.41 

 10.92 

 10.67 



9.91 



11.18 

 10.67 

 10.67 



Two adult females and an immature male from Yautepec, Morelos, and an imma- 

 ture male from Colima, Jalij-co, are altogether paler in color of the upper parts than 

 specimens from other parts of Mexico, which, in coloration, are i^recisely like tho.se 

 from Central America and northern South America. The upper parts are light 

 brown (intermediate between broccoli brown and Isabella color), but the under 

 parts are not differently colored from those of more eastern and southern localities. 

 "Whether these specimens indicate a different form for western Mexico can only be 

 determined by examination of adequate material. 



