The Birds of Angmagsalik. 239 
The skin of a female in winter dress was sent home in 1898: Wing 
188 mm., Tail 105 mm., Tarsus 50 mm. 
On comparing this with ptarmigan from the west coast in similar 
dress it is clearly seen that it is the large Greenland race, called by 
Schiöler groenlandicus. There is hardly any doubt that all ptarmigan 
met with Angmagsalik belong to this race, which is easily recognisable 
from its size alone. 
SLAVONIAN GREBE (Podiceps auritus L.). 
Hornet Lappedykker. 
Petersen has met with this bird a few times. The skin of one taken 
at Sarfakajik on October 8th, 1900, has been sent home; the striped 
head showed that it was a young bird: Wing 140 mm., Tarsus 48 mm. 
The species, which is circumpolar, has its nearest breeding place 
on Iceland, where it is common. 
HOLBOLLS GREBE (Podiceps griseigena Holbolli Reinh.). 
Holbells Lappedykker. 
Only once has this been met with, the skin having been sent home 
of one which Petersen had in 1909 received from Cape Dan, where it 
had been shot two months before. The skin was that of an old bird 
in winter dress and was, as the measurements clearly indicated, of the 
American race, which is much larger than the European bird. Culmen 
52 mm., Wing 200 mm., Tarsus 65 mm., Outer toe 80 mm. The average 
measurements for 6 Danish skins were: Culmen 39 mm., Wing 166 mm., 
Tarsus 54mm., Outer toe 73 mm. 
In colour it quite resembles the European Grey-throated Grebe, 
but is a giant compared with this. It breeds in Arctic North America, 
is seen now and then in West Greenland, but its appearance here on 
the east coast must be regarded as quite accidental. 
GREAT NORTHERN DIVER (Colymbus immer Brünn.). 
Islom. E. Gr.: Kardlimiortok — He who. screams. 
It is quite common at Angmagsalik, and is one of the few species 
which seem to be more common there than in West Greenland, and 
breeds round all small lakes. As these only thaw very late, it arrives 
late too, in the latter half of May, at which time it is often seen or heard 
on the fjord. The eggs are found in June and July, and the birds dis- 
appear in September, a few, however, being met with in October. 
The typical form of the species is generally spread over Green- 
land, both on the east and the west coast; on the east coast it has been 
