igiH.j Cape San Antonio, Buenos Ay res. 397 



plastering of mud_, lined with horsehair and fine roots. 

 Fonr eggs is the general (ilutch, but I have taken several 

 of five and, more rarely, even six. Probably the losses 

 inflicted by various parasitical birds militate against the 

 higher number. 



Tiie egg is a very handsome one, when seen by itself, 

 and not to be confused by the omnium gatherum of its 

 many parasites (I have a vague recollection of a nest con- 

 taining thirteen eggs, not one of which was of legitimate 

 pedigree !). Rather long-shaped, white ground-colour, but 

 clouded reddish, and with large rich reddish-brown spots 

 and blotches, heavier towards the larger end, where they 

 sometimes become confluent. 



Measurements of much variation: Largest clutch 30 x 

 20 mm., s-mallest 25x19 mm. General average 28 x 

 20 mm. 



103 Trupialis militaris (Linn.). Patagonian Marsh- 

 Starling. 



lOl. Trupialis defilippii Bp. De Filij)pi's Marsh - 

 Starling. 



These two species are dealt with at length, in their range 

 and general habits, by Mr. Hudson. In his turn, Mr. Grant 

 has established the residence of the first, and the autumnal 

 visits of the second species to this district 



T. iiiilitaris nests on the ground in long grass, and the 

 nest is built of dry grass. 



The three eggs which constitute the clutch are striking in 

 apjicarance. Ground-colour white, snft'used with purplish 

 spots, and marked with large red-brown blotches and 

 tracings. 



Measurements: Largest clutch 30x19 mm.; smallest 

 20 X 19 mm. General average 28 X 19 mm. 



111. Myiotheretes rufiveiitris (Vieill.). Chocolate Tyrant. 



Extremely rare in this district. Prom 1872 to J 898 



1 may have seen perhaps half-a-dozen solitary individuals 



