BIRDS OF NORTH AND MIDDLE AMERICA, 



451 



and lesser wing-coverts plain olive-green ; upper tail-coverts dusky or 

 dark olive margined with paler olive or olive-green; wings (except 

 lesser coverts) and tail dusky grayish brown, the rectrices edged with 

 light olive, the remiges and greater wing-coverts edged with light yel- 

 lowish olive, the middle wing-coverts margined terminally with the 

 same or with light grayish olive; loral, suborbital, and auricvUar 

 regions dusky; malar region, chin, and throat white or yellowish 

 white, the first tinged or indistinctly streaked with grayish; rest of 

 under parts, including axillars and under wing-coverts, bright canary 

 or lemon yellow, the sides of chest more or less tinged with olive; bill, 

 legs, and feet black; iris brown; length (skins), 151-173 (160); wing, 

 81-90 (86.6); tail, 66-72 (69.7); exposed culmen, 1.3-15 (14); tarsus, 

 16.5-19 (18.1); middle toe, 12-14 (13).'^ 



Adult female. — Similar to the adult male, but without orange on 

 crown or else with a much smaller patch of this color ;^ length 

 (skins), 149-163 (155); wing, 80-88 (82.6); tail, 64-70 (66.9); 

 exposed culmen, 13-15 (13.8); tarsus, 17-18.5 (17.7); middle toe, 

 12.5-13.5 (12.9).^= 



Young. — Essentially like achilts but pileum and liindneck gra^^ish 

 olive-green, rectrices broadly edged (on both webs) with tawny, mid- 

 dle wing-coverts margined with light tawny l^rown or cinnamon, 

 greater coverts and secondaries edged with the same (paler and more 

 yellowish on inner secondaries or Hertials") and yellow of under 

 parts slightl}^ paler. 



Honduras,'^ Nicaragua (Chontales; Ble\vfields; Rio Escondido ; Los 

 Sabalos; Sucuya), Costa Rica (Navarro; Sipurio; Orosi; Jimenez; 

 Pigres), Panama (Loma del Leon; San Pablo Station; Divala; 

 Bogaba), Colombia (Bogota), Venezuela (Orinoco district), Ecuador 



a Ten specimens. 



b In eight out of eleven adult specimens sexed as females there is not a trace of orange 

 on the crown, while in three there is a very small area of this color. In twelve adult 

 males all l)ut one have a large concealed patch of orange, one having none at all. This 

 specimen I suspect to be a female with sex wrongly determined. 



c Ten specimens. 



rf According to Sclater, Proc. Zool. Soc. Lond., 1871, 754. 



