92 
BIRDS OF BRITISH BURMAH. 
green and bronze reflections^ especially strong on the back and scapulars ; 
the first and second primaries tipped slightly with white ; eyelashes black. 
The base of the casque and basal third of bill brownish red ; the corru- 
gations of the casque black in the valleys and yellowish on the ridges ; the 
terminal two thirds of the bill pale yellow; gular skin bright gamboge- 
yellow ; eyelids pinkish flesh-colour, the edges red ; iris bright pink ; legs 
and claws dark brown. 
The female has the tail white as in the male; with this exception the 
whole plumage is black. On the breast there is generally, but not always, 
a pale fulvous crescentic patch ; this is probably a sign of immaturity. 
Base of the upper mandible and base of casque reddish brown ; base of 
lower mandible black ; remainder of bill yellowish white; iris orange-red; 
eyelids deep reddish brown ; orbital skin purplish brown ; gular skin smalt- 
blue, changing to yellow at the junction with the feathered parts all round ; 
legs deep brownish black ; claws dark horn. 
Length 34 inches, tail 11, wing 16*5, tarsus 2*2, bill from gape 7. The 
female is considerably smaller, the wing being about 16 and the total 
length about 30 inches, bill from gape 6. 
The casque in this and the next species is small, extending over about 
half the bill, and is transversely ribbed. 
The number of corrugations on the casque varies considerably, some- 
times being only two, sometimes as many as five. Young birds at first 
have the casque smooth. 
BlytVs Wreathed Hornbill is found locally throughout British Burmah. 
Colonel Tickell speaks of its being found in the inland forests of Arrakan ; 
but I do not know of any one else who has met with it in that Division. 
In Pegu it is spread over the eastern portion of the Division on both sides 
the Sittang river from Tonghoo down to the town of Sittang, and I observed 
it to be most numerous near the village of Khayuay. Mr. Davison found 
it abundant in Tenasserim from Moulmein to Tavoy, and almost absent in 
the country south of this latter town. Capt. Bingham notes it from the 
Thoungyeen valley. It is not yet known to occur outside the limits of 
British Burmah. 
It is by no means clear that this bird occurs in Arrakan. Colonel 
Tickell published an account of Buceros pusaran in ' The Ibis ^ for 1864, 
and Mr. Elliot unhesitatingly identified this bird with R. subruficollis. I 
cannot find a single word in Col. TickelFs account to show that he referred 
to R. subruficollis in contradistinction to R. undulalus. In his ^ Illustra- 
tions of Indian Ornithology ^ Colonel Tickell figures a Hornbill very 
beautifully, and gives an enlarged drawing of the head, under the name of 
Buceros pusaran, and both the figure and the head represent R. subrufi- 
collis ; but Col. Tickell in his manuscript states that he cannot make out 
how R. undulalus n.nd R. subruficollis differ; and it is plain that he con- 
