CXXXIV 
INTRODUCTION. 
374. Larus fuscus ............ Vol. V. PI. LVI. 
Lesser Black-backed Gull. 
Also a resident and breeding speeies. 
375. Larus glaucus ............ Vol. V. PI. LVII. 
Glaucous Gull. 
A bird of the northern hemisphere generally, whence it is driven southward on the approach of winter, at 
which season it arrives here, as well as in similar latitudes in America. 
376. Larus islandicus ........... Vol. V. PI. LVIII. 
Iceland Gull. 
A beautiful species belonging to the regions of the arctic circle, hut frequently coming hither in winter, 
where it finds a more bearable climate. 
377. Larus argentatus ....... .... Vol. V. PI. LIX. 
Herring-Gull. 
A bird we may call our own, since it always enlivens our seas and rocks, especially at the breeding-season. 
378. Larus canus ............. Vol. V. PI. LX. 
Common Gull. 
A native species, abundant both in summer and winter. 
Genus Rissa. 
Established for our pretty Kittiwake. 
379. Rissa tridactyla ............ Vol. V. PI. LXI. 
Kittiwake. 
A local resident. 
Genus Pagophila. 
380. Pagophila eburnea ........... Vol. V. PI. LXII. 
Ivory Gull. 
Abundant at Spitzbergen and many parts of Greenland. Here in Britain it is rare, and quite accidental 
in its occurrence. 
