ANATIDZ. 455 
THE LONG-TAILED DUCK. 
HaRELpDA GLACIALIS (Linneus). 
Although this species is somewhat uncommon in the south and 
south-west of England, it was exceptionally numerous in the winter 
of 1887-88 ; but on the west coast it is local, and adults are seldom 
seen. On the east side, young birds are not infrequent, and two 
adult males have been shot in East Anglia in June and a female 
even in July ; while northward this Duck becomes tolerably abun- 
dant from November to April. In Scotland it is to be met with in 
winter from Berwickshire to Caithness, and on the west side it is 
very common in the Outer and Inner Hebrides. In the Orkneys 
and Shetlands, where the bird is well known by the name of “Calloo,” 
from the loud musical note of the male, it occurs on nearly all the 
inlets or voes ; there is even some evidence that it has bred on 
Sanday, and there can be little doubt that it nests occasionally in the 
Shetlands. To the north and west of Ireland its visits are irregular, 
and in the south they are exceptional. 
It is probable that the Long-tailed Duck nests, though sparingly, 
in the Fzroes, and it does so in considerable numbers in Iceland. 
In Scandinavia it breeds on the streams and lakes of the fells as far 
south as lat. 60°, though it only becomes numerous to the north of the 
Arctic circle ; while in winter it is very abundant along the coasts. 
It also breeds in Jan Mayen, Spitsbergen, Novaya Zemlya, North 
