( aon) 
habits, partially remind us of Pitts ; but their tit-like bills ; high 
elevations they frequent ; the ease and grace with which they climb 
and swing about branches of trees on slender bamboo twigs together 
with their equally good aptitude for the ground, and _ particularities 
of structure entitle them to our favourable consideration though rare, 
and difficult to meet. Should you be ina - position to observe this 
group, a closer examination will fully repay, any labour you may 
bestow. Cochoais shy and reticent. In size 11 inches. Little 
difficulty need be experienced in distinguishing purpurea from the 
much rarer species, viridis. colour of Purple Thrush-Tit is ashy 
purple, above ; wings have a purplish tinge; primaries are black 
with a lavender coloured band near the coverts which are_ black ; 
head is bluish grey. Female, is reddish brown in place of purple 
found on the male. 
(608) Cocuoa Viripts, Green Thrush-Tit, is a much prettier bird. 
It is rare and found with not a little difficulty. It seems to be 
partial to more rugged surroundings in spring, at the far end of the 
Singalillas, where I observed it on two occasions. Doubtlessly some 
fortunate lover of ornithology will find purpurea and viridis in their 
natural home and haunts among the wilds of Nepal J%ridis is 
11 inches in size ; bill black ; irides brown ; plumage, above, is bluish 
green; most of the quills are black ; some of the wing-coverts green 
with black circular spots, others show pale blue with black tips ; 
tail dull blue with black tips to the feathers ; head and back of the 
neck cobalt blue ; black about the sides of the head (lores, super- 
cilium and ear-coverts tinged blue ) ; under parts of the body green, 
with a tinge of blue on the throat and near the legs. 
II. HILL-TITS 
These birds are of smallish size, well-marked, here and there, 
with bright colours. They are social and gregarious, usually associate 
in small flocks, or mixed up with other small birds of arboreal 
habits. 
GENUS PTERUTHIUS, have strong bills, shrike-like in construction 
and habits. Bill is short, stout, a bit wide at the base, curved, 
hooked and notched at the tip; nares with scanty bristles ; wings 
moderate, 3rd 4th and 5th quills the longest; tail short ; tarsus 
shortish ; lateral toes syndactyle ; hind toe long ; claws curved. 
(609) PrERUTHIUS ERYTHROPTERUS, Red winged Shrike-Tit. This 
bird gives us a convenient approach to the group known as Hill- 
Tits, which are interesting birds, some of them are the commonest 
and tamest in Darjeeling, and the district. Red-wing Shrike-Tit is, 
