Diet Overlap

Ceratogymna atrata (Black-casqued Wattled Hornbill)
Bycanistes cylindricus (Brown-cheeked Hornbill)

Common Diet

Annickia affinis
Blighia welwitschii
Canarium schweinfurthii (Schweinfurth's olive)
Celtis mildbraedii (Natal White Stinkwood)
Cleistopholis glauca
Cleistopholis patens
Coelocaryon preussii
Discoglypremna caloneura
Eribroma oblongum
Eriocoelum macrocarpum
Greenwayodendron suaveolens
Heisteria zimmereri
Laccosperma secundiflorum
Lannea welwitschii
Leplaea cedrata (Light Bossé)
Leplaea thompsonii (Black Guarea)
Maesopsis eminii (umbrella-tree)
Margaritaria discoidea (Pheasant-berry)
Musanga cecropioides (Musanga cecropioides)
Pachylobus edulis (eben tree)
Pycnanthus angolensis angolensis
Raphia monbuttorum
Rauwolfia macrophylla
Staudtia kamerunensis
Strombosia pustulata
Strombosia scheffleri
Trichilia monadelpha
Xylopia hypolampra
Xylopia rubescens
Xylopia staudtii

Common Habitat

Africa
Eastern Guinean forests
Guinean Forests of West Africa
Kenting National Park
Loma Mountains Non-hunting Forest Reserve
Marahoue National Park
Mont Nimba Strict Nature Reserve
Mont Peko National Park
Nouabalï-Ndoki National Park
Omo Strict Natural Reserve
Parc National d'Odzala
Parc National de Tai
Reserve de Moukalaba-Dougoua (Gamba Complex)
Sapo National Park
Western Guinean lowland forests

Attributes / relations provided by
♦ 1Breeding and nest site characteristics of the Black-casqued Hornbill Ceratogymna atrata and White-thighed Hornbill Ceratogymna cylindricus in south-central Cameroon, Donald J Stauffer and Thomas B Smith, Ostrich 2004, 75(3): 79–88
♦ 2Seed dispersal by Ceratogymna hornbills in the Dja Reserve, Cameroon, KENNETH D. WHITNEY, MARK K. FOGIEL, AARON M. LAMPERTI, KIMBERLY M. HOLBROOK, DONALD J. STAUFFER, BRITTA DENISE HARDESTY, V. THOMAS PARKER and THOMAS B. SMITH, Journal of Tropical Ecology (1998) 14:351–371