142 TYRANNIDJE. 



Description. Above cinereous, with an olivaceous tint on the lower back ; 

 head black, front varied with white, elongated vertical crest black, sometimes 

 varied with white ; wings blackish, with slight whitish tips to the coverts and 

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

 rectrices whitish ; below pale straw-colour, white on the throat ; throat and 

 breast with numerous and well-marked black striations ; bill and feet black : 

 whole length 4-0 inches, wing 1-9, tail 1/8. Female similar, but crest shorter. 



Hob. Argentine Republic, including Patagonia, Chili, Bolivia, Peru, 

 and Andes of Ecuador. 



This small bird is only four and a half inches long ; in both sexes 

 the colour on the upper parts is dull grey, on the throat and breast 

 ash-coloured ; the belly pale yellow. It has the distinction of a slender 

 curling Lapwing-like crest, composed of a few narrow, long, black 

 feathers. The eye is white. It is found in the thorny thickets on the 

 dry plains of Mendoza, and is also common in Patagonia. In its 

 habits it closely resembles Serpophaga subscristata ; lives always in 

 pairs, perpetually moves about in a singularly deliberate manner 

 while searching through the bush for small insects, the two birds always 

 talking together in little chirping notes, and occasionally bursting out 

 into a little shrill duet. It builds a deep neat nest of fine dry grass 

 and lined with feathers, in a low thorn, and lays two white eggs. 



149. AN^ERETES FLAVIROSTEIS, Scl. et Salv. 



(YELLOW-BILLED TIT-TYRANT.) 

 Anaeretes flavirostris, Scl. et Salt}. P. Z. S. 1876, p. 355 ; 1879, p. 613. 



Description. Above brownish olive ; head black, mixed with white and sur- 

 mounted by narrow elongated black crest-feathers ; wings blackish, outer web 

 of external rectrix whitish ; beneath pale stramineous, throat and breast white, 

 densely striated with black ; under wing-coverts white ; bill yellowish, with a 

 black tip ; feet black : whole length 4-2 inches, wing 2-1, tail 2-0. 



Hab. Bolivia and N. Argentina. 



A specimen of this species was procured at Cosquin, near Cordova, 

 by White. 



150, CYANOTIS AZAR^J, Naum, 

 (MANY-COLOURED TYRANT.) 



Cyanotis azarae, Scl et Salv. Nomencl. p. 47; Durnford, Ibis, 1877, p. 177 

 (Buenos Ayre?, Centr. Patagonia) ; Gibson, Ibis, 1880, p. 32 (Buenos Ay res) ; 

 Doriiiff, Exp. al Rio Negro, Zool. p. 43 (R. Colorado, R. Negro) ; Sorrows, 

 Nutt. Bull. Orn. CL viii. p. 200 (Eutrerios, Carhue, Pampas). 



