IN WESTERN LIBERIA. 207 



Buceros alhocristatiis» 



Buceros albocrisfatus , Cass. Journ. Ac. Nat. Sc. Philad. 

 I. p. 135, pi. 15; — Schl. Mus. P.-B., Buceros, p. 9. 



Buceros (Berenicornis) alhocristatus , Hartl. Orn. W. Afr. 

 p. 163. 



Anorrhinus albocristatus , Elliot, Mon. Buc. 1882. 



Hab. West Africa, from Liberia to the Congo. 



A fine series of nestlings , semi-adult and adult speci- 

 mens collected on the St. Paul's and in the district of Grand 

 Cape Mount. 



This species lives not like the preceding ones in flocks 

 together, but is, although we frequently met with it, a 

 solitary and quiet bird. It is an exclusive inhabitant of 

 the high forest, where it is said to follow the monkeys 

 and to warn them by mewing tones, exactly like those 

 of a cat , when their situation seems to become dangerous. 

 On this account the Liberians call the species the monkey- 

 bird. Although we bought a pair of nestlings of this 

 species at Bavia at the end of January, we were not able 

 to get any information about the interesting sitting time of 

 these birds. One of them was still but half-fledged when 

 we got it, but after about a week's living at our station, 

 when they died , they had already got nearly their full 

 plumage , which was not different in color from that of 

 adult specimens. Their bills were, when alive, green, 

 blackish at base, iris clear blue, feet grayish horn-color. 

 In adult specimens the bill is black, horny white at the 

 base of the upper mandible , iris yellowish white , feet 

 dark blue, turning into lead-color or black after death. 



One of my specimens I shot, together with B. semifas- 

 ciatus and B. camurus , on the same tree in a quarter of 

 an hour, when they came successively to make their meal 

 on the bush-plumes with which the tree was covered. 



Notes from the Leyden Museum, "Vol. VU. 



