BLACK-CROWNED TYRANT 141 



Azara found this species breeding in a hole in a 

 bank ; and Mr, Dalgleish has described a nest, 

 taken from a tree in Uruguay, as a somewhat slight 

 structure, four inches in diameter, formed of sticks 

 and fibres, lined with fine grass and a few feathers. 

 It contained three eggs, pear-shaped, white, with 

 large well-defined spots of reddish brown. 



BLACK-CROWNED TYRANT 



Taenioptera coronata 



Above cinereous ; rounded summit of head black, broad front and 

 band encircling the black of the head white ; wings blackish, upper 

 coverts cinereous, edgings of middle and greater coverts and of outer 

 secondaries whitish ; tail blackish, margins of outer webs of external 

 tail feathers white; beneath white; under wing-coverts and a large 

 portion of the inner webs of the remiges, except of the two outer 

 primaries, white ; bill and feet black ; length 7.8 inches. 



IN this species the sexes are alike. The crown is 

 black and composed of loose feathers ; the forehead, 

 and a broad line over the eye which extends nearly 

 round the head, also all the under plumage, pure 

 white ; neck and back clear grey ; quills black. 



This Tyrant is a solitary bird, though often many 

 individuals are found within call of each other, and 

 they sometimes even unite in a loose flock. It is 

 found throughout the Argentine country, ranging 

 south to the Rio Negro, in Patagonia, but abounds 

 most on the Buenos-Ayrean pampas, where it per- 

 forms a partial migration. Most of the T&nioptera 



