280 LINN^US. 



42. Falco, eagles and hawks. Beak hooked; head 

 feathered : 32 species. 



43. Strix, owl. Beak hooked, feathers at its base di- 

 rected forwards : 12 species. 



44. Lanius, shrike. Beak straightish, notched : 26 

 species. 



Order II. Pic^. 



45. Psittacus, parrots. Beak hooked ; upper mandible 

 furnished with a cere : 47 species. 



46. Ramphastos, toucan. Beak very large, hollow, 

 convex, serrated ; both mandibles incurved at the tip : 8 

 species. 



47. Buceros, hornbill. Beak convex, curved, cultrate, 

 large, serrated j forehead covered with a horny plate : 4 

 species. 



48. Buphaga, beef-eater. Beak straight, somewhat 

 quadrangular ; the mandibles bulging : 1 species. 



49. Crotophaga, plantain-eater. Beak compressed, 

 half-eggshaped, arched, keeled on the back : 2 species. 



50. Corvus, crows. Beak convex, cultrate; nostrils 

 covered by recumbent bristly feathers : 19 species. 



51. Coracias, roller. Beak cultrate, the tip incurved, 

 not covered with feathers at the base : 6 species. 



52. Oriolus, oriole. Beak conical, convex, straight, 

 very acute ; upper mandible slightly longer, and indis- 

 tinctly notched : 20 species. 



53. Gracula, grakle. Beak cultrate, convex, bareish 

 at the base : 8 species. 



54. Paradisea, birds of Paradise. Beak covered with 

 the downy feathers of the forehead; feathers of the 

 sides long : 3 species. 



55. Trogon, curucui. Beak shorter than the head, 

 cultrate, hooked, serrated : 3 species. 



56. Bucco, barbet. Beak cultrate, laterally compress- 

 ed, notched at the tip, incurved, opening to beneath the 

 eyes : 1 species. 



