RICHARDSON’S SKUA. O34 
POMATORHINE SKUA. 
STERCORARIUS POMATORHINUS (Temminck). 
Although much less common than on the east coast 
of England, the Pomatorhine Skua has been obtained 
several times in Cheshire. The occurrences have been 
chiefly in autumn. One was shot at Hoylake in 
September 18521 There is an immature bird in the 
Grosvenor Museum, Chester, which was shot in the 
Dee Estuary near Queensferry, on October 20th, 1890. 
Dr. Dobie has examined a bird in immature plumage 
which was shot at Bruera about the year 1880. It 
was feeding on a dead rabbit in company with another 
Skua.?_ There is a Pomatorhine Skua in mature plum- 
age in the Brown Museum, Liverpool, which was killed 
on the Mersey near that city; and we have examined 
a young bird which was shot at Baguley in autumn, 
about the year 1892. 
RICHARDSON’S SKUA. 
STERCORARIUS CREPIDATUS (J. F. Gmelin). 
This species occurs upon our coasts more frequently 
than any of the other Skuas. Examples have been 
several times shot in the Mersey Estuary. The late 
H. Durnford considered that an example obtained on 
the Cheshire coast in September 1872 had the char- 
acters of the dark form specially pronounced? Some 
years ago a man killed a Richardson’s Skua, with a 
1 Byerley, op. cit. p. 23. 2 Dobie, op. cit. p. 345, 
3 Zoologist, ser. 11. vol. vii. p. 3339. 1872. 
