144 BIRDS OF LA PLATA 



about, one seemed to be followed without regard to 

 the rest/' 



I have often watched Taeniopterae of different 

 species, also Myiotheretes rufiventris, behaving in a 

 similar way, and agree with Mr, Barrows that it is 

 " an amusement in which the larger bird indulges 

 simply for the pleasure derived from the exercise of 

 his power/' 



DOMINICAN TYRANT 



Tsenioptera dominicana 



Above pure white ; wings black, with a broad whitish sub-apical 

 band across the first six primaries, beyond which the tips are blackish ; 

 tail black ; beneath pure white ; length 8 inches. Female similar, but 

 head above and back cinereous. 



THIS bird ranges from South Brazil and Paraguay 

 to the southernmost pampas of Buenos Ayres, Its 

 total length is eight inches. The wings and tail are 

 black, the former barred with white ; all the rest of 

 the plumage in the male is pure white ; in the female 

 the upper parts are grey, 



It is to some extent migratory, and usually goes 

 in flocks of a dozen or twenty birds, and frequents 

 open situations where there are bushes and trees, 

 also plains covered with giant grasses. They are 

 more social in their habits than T, coronata, but in 

 other respects closely resemble it, and are exceedingly 

 active, lively birds, and when the flock is on the wing 

 continually pursue each other in a playful manner. 



