1872.] LAMELLIROSTRES OF THE ARGENTINE REPUBLIC. 3(if> 



II. Anatin^e. 

 2. Cygnus. 



3. Cygnus nigricollis, auct. ; Burm. Reise, ii. p. 512. 



A common bird in the southern parts of the Republic near the 

 river Parana and the great lagunes of the interior. It is often 

 brought into the market at Buenos Ayres, and is occasionally to be 

 seen in flocks consisting of from four to five individuals, flying at a 

 great height over the town towards the river. 



4. Cygnus coscoroba, Gray; Burm. Reise, ii. p. 512. 



This bird is more numerous than the preceding species, and is 

 generally seen in large flocks near Santa Fe' on the river Salado, and 

 in the south of Buenos Ayres on the same river. It is very common 

 in Patagonia on the rivers Colorado and Negro, and is also to be 

 seen in Buenos Ayres, flying high over the town in flocks which 

 I have never observed to exceed six individuals in number. On the 

 shore these flocks generally unite and form large bodies. 



3. Sarcidiornis. 



5. Sarcidiornis regia, Eyton ; Burm. Reise, ii. p. 513. 

 This large and beautiful Duck I have found only in the northern 



province of Tucuman, and never in the southern parts of the 

 Republic near Parana or Buenos Ayres. Azara says the same, and 

 that the bird is common in Paraguay. 



4. Bernicla. 



6. Bernicla melanoptera, Gay ; Philippi, Wiegm. Arch 

 1863, i. p. 185. 



Chloephaga melanoptera, Eyt. Monogr. p. 93 ; Burm. Reise, ii. 

 p. 513. 



This bird is found in the valleys of the Cordilleras from 8000 to 

 10,000 feet above the level of the sea, not descending into the 

 plains. It is nowhere common, at least in the southern districts of 

 the Republic. 



I only found this bird while on my way from Copacavana to 

 Copiapo on the river Blanco. They were always in pairs ; the sexes 

 are alike in colour. The name given to this well-known bird by the 

 inhabitants is " Pinquen." 



There are three other species of Bernicla in the Argentine Re- 

 public, all living in the most southern parts of that country, from 

 Bahia Blanca to the Straits of Magellau, where I have never been. 

 On the approach of winter two of these species remove nearer to 

 Buenos Ayres, where they are found in the vicinity of Tondil and 

 the Laguna de los Padres, but exceptionally. They are more com- 

 mon at Bahia Blanca and El Carmen, on the Rio Negro, from 

 which locality I have lately received both species. The third is an 



