100 Mr. H. L. Popham on Birds 



all the nests the female was shot. All the nests were placed 

 at the foot of a cliff occupied by either a Peregrine or a 

 Rough-legged Buzzard (possibly for protection from foxes), 

 and well supplied with down. 



Measurement of eggs : 2*79 in. by 1"93 in. 



64. Cygnus bewicki. Bewick^s Swan. 



So far as we were able to ascertain, all the Swans on the 

 river were of this species. Although we saw at times many 

 hundreds of Swans on our passage down the river, we never 

 succeeded in shooting one or in finding a nest, but after a 

 long and exciting chase I secured three young Bewick^s 

 Swans in down in about 72° N. lat. I was unable to bring 

 down the old birds, having only a 28-bore gun loaded with 

 half charges of small shot. 



^65. Anas boscas. Mallard. 

 Rare. Only one was shot (at Yeniseisk). 



-|-66. QUERQUEDULA CRECCA. Tcal. 



Fairly numerous up to 66° N. Two nests were found. 



67. QuERQUEDULA ciRciA. Gargancy. 



Four or five pitched among my wooden decoys one 

 evening while flighting at Yeniseisk, and I secured a 

 specimen. 



x 68. Dafila ACUTA. Pintail. 



Common all the way down the river, and nesting on the 

 banks. 



'69. Mareca PENELOPE. Wigcon. 



This was the most numerous of the Ducks on the river, 

 but did not appear to extend so far north as D. acuta. Many 

 nests of it were found. 



, 70. FULIGULA MARILA. Scaup. 



Several were observed, and a few nests found ; one of 

 these containing six eggs, of which some were tinged with 

 buff and the others with green. 



71. FuLiGULA CRiSTATA. Tufted Duck. 



Hill shot one male of this species near Toorukhansk. 



