BIRDS OV NORTH AND Ml DDL?: AMERICA. 



217 



yellowish ()liv('-j4r('eii or olive-yellow; under tail-coverts .sulphur yel- 

 low; under wing-coverts yellowi.sh white or white, tinged with sul- 

 phur yellow; maxilla dusky brown, with paler toniia; mandible pale 

 graj'ish l^rown in drii^d skins (Vihiish u'ray in life^: lejjfs and feet horn 

 color in dried skins, 



'Young {Jii\st pJi(i)i((</r). — rileum and hindneck vinaceous-drab; back, 

 scapulars, rump, upper tail-coverts, and wing-coverts similar but 

 browner (between cinnamon and isabella color); under parts white, 

 the sides and flanks tinged with grayish and with traces of yellowish 

 olive; under tail-coverts light olive-yellow^; remiges and rectrices as 

 in adults." 



Achilf ///r//^.— Length (skins), 87-104 (96.4); wing, 47-57 (53.1); 

 tail, 31-41.5 (36.9); exposed culmen, 10., 5-13 (11); tarsus, 16-17 

 (16.4); middle toe, 8-9 (8.7).'' 



Adult female.— Length, (skins), 82-102 (95.5); wing, 47-57 (52.3); 

 tail, 30-40.5 (35.9); exposed culmen, 10.5-12 (11.5); tarsus, 16-17.5 

 (16.7); middle toe, 8-9.5 (8.7).^ 



(' The specimen described has partly assumed the adult plumage, but is mainly 

 colored as descrilied above. 

 '' Eighteen specimens. 

 '■ Eleven specimens. 

 Examples from different localities average, respectively, as follows: 



Locality. 



Wing. 



Tail. 



Ex- i 



posed I Tarsus, 

 culmen. 



Middle 

 toe. 



MALES. 



Four adult males from Vera Cruz and Oaxaca 

 Three adult males from Tabasco and Chiapas 



Two adult males from Yucatan 



One adult male from northern Honduras 



Two adult males from Nicaragua 



Two adult males from Costa Rica 



One adult male from Chiriqui 



Two adult males from Panama 



FEMALES. 



Four adult females from Tabasco 



One adult female from YucaUiu 



Two adult feuiales from Nicarajfua 



Two adult females from ( ihiricjui 



Two adult females from Panama 



8.7 



9 



8.5 



9 



9 



'8.7 



8.2 

 8.7 

 9 



Ah a rule specimens from Nicaragua and southward arc decidedly smaller than 

 examples from northern Honduras and northward to southern Mexico, and have 

 the coloration slightly duller, the gray of the pilcmn and hindneck being less clear 

 and less sharply delined against the olive-green of the back, and occasionally slightly 

 tinged with olive-green. Were it not for tlie two females from Chiriqui, which 

 are quite as large as the largest uf that sex from Mexico, the recognition of a smaller 

 southern rac-e would appear to be justifieil. It is possible the two specimens in 

 question liave the sex erroneously determined, since th(\v arc both decidedly larger 

 than the single male examined from the same locality. 



