Order Passeres. ' ' , 
Tribe Conirostrcg. , , ' * 
Fam. Bucerotida?. 
‘ Gen. Buceros. • 
■ ■ 
Buceros convexns (Tenini.), V •*' 
„ pica (Bonaparte consp. av.). 
A.bove, black ; below, throat, breast and sides, black, belly and 
lower tail-covers white ; wings black, the outer edges, jest above the 
base of the primary quills, white ; the two first primaries black, the 
rest black tipped with pure white ; the two centre feathers of the 
tail black, all the rest pure white; thighs white, legs and feet black; 
bill yellowish white, the margins black, the point of the upper 
mandible is also black, which colour extends along the upper ridge 
to the casque or horn, the anterior part of which is irregularly 
marked with the same colour on the upper surface ; the base of the 
lower mandible is black; skin round the eyes, at the base of the 
lower mandible and on the upper throat, black and bare of feathers 
except a narrow line of black feathers which separates the part round 
the eyes from that below ; a similar line of black feathers also 
occurs down the centre of. the upper throat. 
Total length, about 2 feet. 
Length of wings, 1 foot. 
„ of tail, 11 inches. 
„ of bill, from gape, 6 inches. ^ . 
Casque broader than it is high. ' 
Length of tarsus, 1 inch 9 lines. . 
„ of middle toe, 1 inch 11 lines. 
„ of lateral toes, equal. , ^ . 
„ of hallux, 1-t inch. 
These Hornbills are not uncommon in Labuan ; they are 
shy and wild in their habits, haunting very deep and tail 
jungle, and are generally seen in pairs ; they feed almost en- 
tirely on fruits, though some which were kept in a cage by 
Mr. Motley for some time would eat almost anything ; they 
preferred plantains, however, of which they would gulp three 
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