in the Chuput Valley, Patagonia. 43 



some marshy ground close to the village^ which I flushed a 

 secoud time iu order to be sure of the species, 



Tringa maculata. 



Abundant in large flocks about the salt lagoon to the north 

 of the village, and also on the sandy flats at the mouth of the 

 river. In their movements and habits they closely resemble 

 our ubiquitous T. alpina at home, flying in a body, suddenly 

 wheeling round, displaying alternately their light underparts 

 and dark backs, and usually raising their wings over their 

 backs before alighting, which they all do at the same moment. 



Gambetta flavipes. 



Common along the banks of the river and in the adjacent 

 swamps and pools. 



Limosa hudsonica. 



During my visit a small party was always to be found in 

 the shallow water at the west end of the large lagoon to the 

 north of the village, feeding in company with Tringa macu- 

 lata and a species of Mgialitis. On the 13th of November I 

 shot two birds. 



Sterna hirundinacea. Less. ; Saunders, P. Z. S. 1876, 

 p. 647. 



During my visit a large flock frequented the banks of 

 sand and shingle at the mouth of the harbour^ and had in- 

 creased in number when I left on the 29th of November. On 

 the 26th I observed amongst the adult birds some Terns with 

 grey foreheads and indistinct black hoods, their primaries and 

 secondaries being marked with rufous brown, beaks dark lead- 

 colour. As, with these exceptions, they precisely resembled 

 the black-headed birds, I conclude they were H. hirundinacea in 

 immature plumage. I obtained specimens in both plumages. 

 Though these birds were apparently congregating for nesting- 

 purposes, I could not learn from any of the colonists that their 

 breeding-place was known. 



Larus maculipennis. 



Common about the mouth of the river, and a few observed 

 up the valley the first week of my visit. From some of the 

 colonists I learned the following particulars concerning the 



