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Parasitic Gulls etc. : owing to their sea faring habits. They are not 
found in or near the district, and restrict’ their movements chiefly 
to the Bay of Bengal and Tidian Ocean. 
GROUP VAGATORES. 
FAMILY LARIDA& (Gulls and Terns) 
Comprise the following Sub-Families :— 
I. LestripinN®z—Skuas or Parasitic Gulls. 
Il. Larinaz—Gulls. 
III]. STeERNINA 
Terns. 
Il. Sus-Famity LARINZ (Gulls) 
Have several birds, which wander far inland. One species 
at least passes over Darjeeling to breed in Thibet. 
These Gulls are found in two Classes :— 
I. Laree—Birds of large size, with spots on the back 
and neck. 
II. Xemexw—Smaller size birds, having larger and more 
slender feet. 
LARINZ have longish, stout bills, tips curved; wings long ; 
legs midway on the body. 
We will examine more closely, the second group of these birds, 
which have black or brown heads in summer ; shorter bills ; wings 
long ; tail short ; tarsi long. 
(980) XEMA BRUNNICEPHALA, Brown-headed Gull, which is 
generally seen on sea-coasts ; but they are frequently observed far 
inland, keeping much to big rivers. They are plentiful in Bengal, 
except in the breeding season, when they pass over into Central 
Asia and Thibet, returning with the young Gulls before termination 
of the rainy season. One of these Gulls was captured, on its 
migratory journey into Thibet by Limneius Cristatellus (35), not far 
from Ghoom forest. Crested Hawk-Eagle was busy making a 
morning meal of it, when a discharge of No. 8 shot caused Cristatellus 
to look up, and relax its hold on the bird ; as it came tumbling to 
