Hornbills (Bucerotidae)

Von der Decken's Hornbill (Tockus deckeni) - HBW 6, p. 496

French: Calao de Decken German: Von-der-Decken-Toko Spanish: Toco Keniata
Other common names: Decken’s Hornbill; Jackson’s Hornbill (jacksoni)

Taxonomy: Buceros (Rhynchaceros) Deckeni Cabanis, 1869, Seyidie Province, Kenya.
Closest to T. leucomelas and T. flavirostris, but also close to T. monteiri and T. erythrorhynchus, based on similar calls and behaviour, and DNA studies. Race jacksoni distinctive, often considered a separate species. Two subspecies recognized.

Subspecies and Distribution:

  • deckeni (Cabanis, 1869) - Ethiopia, S Somalia, Kenya (except NW) and Tanzania.
  • jacksoni (Ogilvie-Grant, 1891) - SE Sudan, NE Uganda and NW Kenya.