FAMILY TANGARID^E 



Key to the Tanagers 



a. Size small, not over 125 mm. (4.90 in.), often much 

 smaller. 



b. Plumage black with conspicuous white spot on 



shoulder 



Tachyphonus luctuosus panamensis, male 



bb. Plumage not predominatingly black. 

 c. With yellow or yellowish on under parts. 

 d. Upper parts steel blue. 



e. Under parts wholly yellow; crown yellow. . . . 

 Tanagra crassirostris, male 



ee. Under parts not wholly yellow, the chin and 

 throat steel blue. 



f. Remaining under parts yellow; crown yel- 

 low (no white on tail) 



Tanagra luteicapilla, male 



ff. Remaining under parts not wholly yellow. 



g. Lower abdomen and under tail c*overts 

 orange tawny; front of crown yellow, 

 the yellow feathers tipped with dusky 

 Tanagra fulvicrissa, male 



gg. Lower abdomen and under tail coverts 

 white; front of crown yellow, the 



feathers not tipped with dusky 



Tanagra minuta humilis, male 



dd. Upper parts olive green. 



e. Under parts wholly yellowish. 



f. Larger, length 103 mm. (4.00 in.) 



Tanagra crassirostris, female 



ff. Smaller, length 93 mm. (3.75 in.), (no 



white on tail) 



Tanagra luteicapilla, female 



ee. Under parts not wholly yellowish. 



f. Larger, length 120 mm. (4.80 in.); throat 

 buffy white; remaining under parts yel- 

 lowish (sides of head gray, eyelids dull 



white) 



.... Tachyphonus luctuosus panamensis, 



female 



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