310 HORN-BILL. 



B. — Buceros Hydrocorax, Ind. Orn. i. 144. Lin. Syst. i. 153. Gtn. Lin. i. 359. Bris. 



iv. 566. t. 45. Id. 8vo. ii. 203. Borowsk. Nat. ii. p. 100. 

 Corvus Indicus Bontii, Raii Syn. p. 40. 7. Will. Orn. p. 86. t. 17. lower figure ? Id. 



Engl. p. 126 ? 

 Corvus torquatus, &c. Klein. Av. p. 58. II ? 

 Calao des Moluques, Buf. vii. p. 147. PI. enl. 283. 

 Calao roux, Levail. Amer. Sf Ind.i. p. 17. pi. 6. 

 Bontian Horn-bill, Skate's Zool. viii. p. 31. 

 Indian Horn-bill, Gen. Syn.'i. p. 351. Id. Sup. ii. 100. 



This is two feet four inches long ; the bill two inches thick at the 

 base, five in length, and bends a little downwards ; both mandibles 

 dentated at the edges; on the top an additional excrescence, flat above, 

 rounded behind, and projects over the back part of the head, where 

 it is whitish ; but the rest of it, as well the bill, is ash-colour ; the 

 cheeks and throat are black ; beneath this a dirty grey arched bar ; 

 the rest of the neck pale chestnut ; back, scapulars, wing coverts, 

 and rump, brown ; breast, belly, and sides, blackish, mixed with 

 grey ; thighs yellow brown ; beyond this pale yellow ; quills black ; 

 tail eight inches long, dirty cinereous white ; legs grey brown; claws 

 black. 



This no doubt is a young bird of the Concave Horn-bill ; but that 

 described and figured by Levaillant, is perhaps still younger ; the 

 bill itself is unformed and thin, as well as the helmet, which seems 

 rather ridged on the top than flat ; the general distribution of colours 

 does not seem greatly to differ ; we may, however, observe, that the 

 parts which are brown in the other, in this incline to ash-colour, 

 and the chestnut parts to rufous ; the bill is horn-colour, and the legs 

 rufous. 



Inhabits the Molucca Islands. A specimen has been received 

 from Batavia. Said to be found in the Philippine Isles. 



