122 Mr. C. H. B. Grant on Birds collected in Argentina, 



one season ; but I have no skins to prove this absolutely, 

 and the reason for the February adult assuming ashy feathers 

 needs further explanation. 



The young in first plumage are : — 



" Ashy cinereous above, each feather edged with buffy 

 Avhite, as likewise are the wing-coverts_, bastard wing, and 

 inner secondaries ; the tail is also tipped with buff ; below 

 white or buffy white, striated with ashy on the breast 

 and flanks ; under tail-coverts creamy with ashy centres ; 

 axillaries and under wing-coverts edged with cream-colour, 

 more ashy in some specimens.'^ 



This is a common bird throughout the summer in the 

 Ajo district, but was only once observed during the river 

 expedition, when two males were seen near Pedernal on the 

 30th of August. 



The males are striking and pretty objects and have all 

 the habits of a Flycatcher ; but, unlike most of its congeners, 

 this species has the habit of soaring for short distances with 

 rapid beats of the wings from the top of some tree and 

 returning to the same spot. 



In the evening it utters a mournful note of " churinche," 

 and probably from this note comes the local name of 

 " Churinche." 



The nest is composed of lichen lined with a few feathers 

 and is a very flat structure with a slight cup-shaped depression : 

 as a rule, it is placed in the fork of a tree clothed in lichen, 

 often at no great height, and is extremely difficult to pick 

 out. 



96. Empidochanes fringillaris. 

 Empidochanes fringillaris Scl. Cat. B. xiv. p. 216. 

 a. S ad. Pan de Azucar, Brazil. Sept. 20, 1909. 

 Irides hazel ; bill horn-brown ; legs and toes purplish 



brown. 



97. Myiarchus tyrannulus. 



Myiarckus tyrannulus Scl. Cat. B. xiv. p. 251 ; Arg. Orn. 

 i. p. 156. 



a. $ ad. Puerto Asir, Paraguay. Aug. 27, 1909„ 



