CCVl 
APPENDIX. 
winter residence is entirely unknown, nor can any of the descriptions of new 
or doubtful species of gulls which have been killed on passage in America, 
be considered to belong to the present species in any possible variation of 
its plumage ; the characteristic marks are peculiar and distinctive. 
Besides the specimens which were brought to England in 1818, one only 
is known to exist in any collection ; namely, the one which on Mr. Tem- 
minck’s information has been stated to have been presented to the Museum 
at Vienna by Sir Charles Giesecke, but of which no account has hitherto been 
published ; it is not known, therefore, from whence this specimen was ob- 
tained, especially as the existence of an undescribed species of gull is not 
noticed in Giesecke’s enumeration of the birds of Greenland published in 
Brewster’s Cyclopcedia, nor in his MSS. list in the possession of Mr, Bullock. 
The three islands above-mentioned, are therefore as ,yet the only land 
which these birds are known to inhabit. 
21. Lestris Parasiticus. Arctic Lestris. 
Greenl. Birds, no. 24. Temm. 796. 
Is equally abundant in the islands of the Polar Sea as in Baffin’s Bay ; and 
is frequently met with inland, seeking its food along the water-courses which 
occupy the bottom of ravines ; differing in this respect from the next species 
which is more exclusively a sea bird. 
22. Lestris Pomarinus. Pomarine Lestris. 
Temm. 793. ^ 
Several individuals, corresponding in all respects with the description 
referred to, were killed in Prince Regent’s Inlet ; both species of Lestris were 
also seen at Melville Island, but the Pomarinus more rarely than the 
Parasiticus, 
23. Procellaria Glacialis, Fulmar Petrel. 
Greenl. Birds, no. 25. Temm. 803. 
