observed un the Ye/iinei River. 509 



95. *PaLCO VKSPEKTINUS. 



Five nests were found belonging to the Ked-legged Falcon 

 at Yeniseisk, where the birds are common, but this place 

 appears to be near the northern limit of their range. Their 

 ordinary cry is a long " cheet, cheet/' but their alarm-cry 

 when their nest is approached becomes a short and quickly- 

 repeated "chi, clii, chi, chi/' 



96. ^Falco tinnunculus. 



Kestrels were fairly numerous and nesting at Yeniseisk, 

 but scarcer than the preceding species. 



Pandion haliaetus. 



(Dr. Theel, at Krasnoyarsk and lat. 61° N.) 



97. BoTAURUs sTELLARis. Bittern. 



CiCONIA NIGRA. 



(Dr. Theel, at Krasnoyarsk and Yeniseisk.) 



98. ■'^Anser segetum. 



The Bean-Goose is the most numerous of the Geese on 

 the Yenisei up to about lat. 72° N., beyond which it is 

 replaced by the following species. 



99. *Anser albifrons. 



The White-fronted Goose nests in considerable numbers 

 on the islands at the mouth of the river; both parent birds 

 are usually found at the nest. 



100. ^Bernicla brenta. 



The Brent Goose also nests on the islands north of 

 Golchika ; these being generally inhabited by either the 

 Brent or the White-fronted Geese, but seldom by both species. 

 The Brent, which is here the form with dark underparts, 

 lines its nest, containing from three to five eggs, with far 

 more down than the other Geese place in theirs. The 

 sitting bird often remained on its nest with its neck stretched 

 out along the ground until I was within a few yards of it. 



101. *Bernicla ruficollis. 



The Red-breasted Goose appears to be exceedingly local 

 on the Yenisei, and in 1895 we had evidently "killed the 



