WHITE-BEAKED HORNBILL. 1^ 



of the rest of the casque, and even more solid, since 

 on the other parts it yields to the pressure of the 

 fingers: these two characters therefore evidently 

 prove that these birds form two distinct species. 

 The feathers of the hindhead are long, slender, 

 loose-webbed, and form a pendent crest of a black 

 colour, as are also the neck, shoulders, back, sca- 

 pulars, wings, and tail ; the latter and the wing* 

 coverts exhibiting a greenish gloss: the wings and 

 side-feathers of the tail are tipped with white, the 

 two middle tail-feathers being totally black: the 

 breast, belly, sides, thighs, and vent-feathers are 

 white: the legs and claws black: the orbits of the 

 eyes, and the base of the lower mandible are sur- 

 rounded by a bare skin, which in the dried bird is 

 of a brownish colour: the upper eyelids are ciliated, 

 and the nostrils covered with hairs rising over the 

 edge of the casque.'* 



Monsr. Levaillant received no account of the 

 manners of this bird, but considers the above de- 

 scription fully sufficient to prevent its being con- 

 founded with the preceding species. 



