BIRDS OF NORTH AND MIDDLE AMERICA. 



231 



under wing-coverts and edges of inner webs of reniiges pure lemon 

 yellow; maxilla brown (pale brown or flesh colored in life); mandible 

 dusky (grayish blue in life), the terminal portion pale colored; iris 

 yellow; legs and feet pale brownish (pale purplish or flesh color in 

 life); length (skins), 130-145 (138.7); wing, 71-78 (75.6); tail, 52.5-58 

 (55.2); exposed culmen, 15-17 (16.1); depth of bill at nostrils, 8-8.5 

 (8.3); tarsus, 21-23 (21.2); middle toe, 12-13 (12. 7). « 



Admit female. — Similar to the adult male and often not distinguish- 

 able, but usually ( ?) yellow of under parts either slightly paler and 

 more restricted or else more tinged with olivaceous, pileum rather 

 more decidly brown, and olive-green of back, etc., slightly duller; 

 length (skins), 135-148 (143.1); wing, 71-78 (75); tail, 56-60.5 (57.5); 

 exposed culmen, 16-17 (16.3); depth of bill at nostrils, 8-9 (8.2); tarsus, 

 22-23.6 (22.6); middle toe, 13-14.5 (13.6).* 



Young. — Similar to adalts but superciliary stripe paler (cinnamon or 

 ochraceous-cinnamon, instead of cinnamon-rufous or rufous-chestnut), 

 yellow of under parts purer (without olive tinge) and mandible wholly 

 brown, like maxilla. 



Costa Eica (Dota; Barranca; San Jose; Tucurriqui; Bebedero; 

 Nicoya; Volcan de Irazu) and Chiriqui (Volcan de Chiriqui; Boquete). 



"Six specimens. 

 ^ Seven specimens. 



Examples of this species from various localities compare in average measurements 

 as follows: 



The differences between the so-called subspecies are not very strongly marked, and 

 1 am not entirely satisfied as to their vaHdity. 



