FAMILY TYRANNIZE 



aa. Upper parts not streaked, 

 b. Upper parts brown. 



c. Small, length about no mm. (4.30 in.) ; ground 

 color below buffy white; two conspicuous 



buffy wing bars 



Myiophobus fasciatus furfurosus 



cc. Larger, length about 144 mm. (5.70 in.); 

 ground color below light sulphus yellow; a 



broad white streak above eye 



Legatus I, leucophaius 



bb. Upper parts olive green; light sulphur yellow 

 below, closely streaked with olive; length about 

 127 mm. (5.00 in.) Mionectes o. olivaceus 



IV. Under parts brownish or tawny. 



a. Larger, length about 170 mm. (6.70 in.); tail pro- 

 portionately longer, russet brown ; brownish above 

 Cnipodectes s. subbrunneus 



aa. Small; under parts tawny. 



b. Length about 112 mm. (4.40 in.); throat olive; 



two tawny buff wing bars 



Pipromorpha oleaginea parca 



bb. Very minute, length about 91 mm. (3.60 in.); 

 wings (when closed), rump and tail tawny. . . . 

 Terenotriccus erythrurus fulvigularis 



V. Under parts white or grayish white with little or no 



tinge of yellow. 



a. Large, length about 190 mm. (7.50 in.); no tinge 

 of yellow below. 



b. Upper parts dusky; tail tipped with white; bill 

 normally proportioned Tyrannus tyrannus 



bb. Upper parts gray; tail without white tips; bill 



obviously long and heavy in proportion 



Tyrannus dominicensis 



aa. Smaller, length not over 158 mm. (6.20 in.); under 

 parts with yellowish tinge. 



b. Length not under 119 mm. (4.70 in.); dull olive 

 above. 



c. Whitish wing bars and whitish eye ring; 

 habits active. 



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