Birds of Central Patagonia. 391 



body of water in it_, and is apparently deeper : it is situated 

 about six miles in a direct line from the first lake^ from 

 which it is divided by a high range of volcanic hills. After 

 passing this lake, we followed the Sengel through many tor- 

 tuous windings to a point I consider to be about lat. 45° 50' S., 

 long. 69° 50' W. 



On the 19th November we commenced our return journey, 

 retracing our steps to the point at which we had touched the 

 Sengelen, which we reached on the 26th. We then followed 

 this river nearly to its junction with the Chupat, in about 

 lat. 43° 46' S., long. 69° 48' W. ; and travelling along the 

 valley of the latter we reached the colony on the 4th De- 

 cember, 1877, after an absence of just six weeks. 



On the 7th December I started on an expedition to Ninfas 

 Point, where, however, I observed nothing of note. 



After my return from there on the 12th, I was occupied 

 till Christmas in collecting in the neighbourhood of the 

 colony. 



On the 26th December I made an excursion to Tombo 

 Point, about sixty miles to the south of Chupat, where I had 

 heard there was a large gullery, of which more anon, return- 

 ing on New Year's day. Owing to some very brackish water 

 I was compelled to drink whilst there, I was laid up for six 

 weeks after my return, with, I believe, inflammation of the 

 bowels, from which I was nearly recovered by the end of 

 March. 



There being no vessel leaving the colony till the 20th 

 April, I was unwillingly detained till that date ; and on the 

 30th we again anchored in the muddy waters of the La Plata. 



My communication to 'The Ibis,^ mentioned above (January 

 1877), contained notices of 62 species of birds observed in 

 the Chupat valley and the neighbourhood. My present list 

 extends this number to 89 ; and I do not think that many 

 more will be found to occur in the district. 



The only bird seen which I was unable to identify was a 

 Snipe, specimens of which occurred at the Sengel where it 

 enters the lake, and in the valley of that river, where I took 

 its eggs. I believe it to hav^ been the same species as is 



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/W i^ (V 



