observed in the Kola Peninsula. 
491 
We observed neither this nor the preceding species in Kan- 
dalax Bay, but Pleske records both from there. 
Larus glaucus. 
We saw two or three of these Gulls in Kandalax Bay on 
July 4th and 5th. We also observed a few of them among 
the ice in the White Sea near the mouth of the Ponoi river, 
on the east coast of Russian Lapland. 
Rissa tridactyla. 
The Kittiwake was fairly common in the Kola Fjord. 
Stercorarius crepidatus. 
A few Arctic Skuas were seen near Ekaterina. At Vardo 
on June 16th a pair (light male, sooty female), which had eggs 
on a bare patch of ground surrounded by deep snow, were 
accompanied by a dark bird at which they were continually 
swooping, as though with the intention of driving it away. 
We were unable to shoot this third bird, but at Ekaterina 
on August 3rd we found two pairs of light-coloured birds, 
each accompanied by a third dark bird, which was treated 
in the same way as the one at Vardo. On one of these 
dark birds being shot, it was found to be an immature bird 
of apparently the year before, since it still retained several 
rufous-edged feathers, had a barred breast and a pointed 
tail. Is it possible that pairs of Arctic Skuas are sometimes 
accompanied during the breeding-season by a young one of 
the year before ? On the other hand, we found near Ekaterina 
three birds of the year together unaccompanied by any adult 
bird. 
Stercorarius parasiticus. 
A pair of Long-tailed Skuas, shot near Ekaterina, were 
the only ones seen. The stomach of one contained a mouse ; 
that of the other held seeds, probably those of the crowberry. 
Uria grylle. 
Black Guillemots were common in Kandalax Bay and at 
the mouth of the Kola Fjord. 
CoLYMBUS GLACIALIS. 
On a small lake in a marsh near the Imandra, which we 
