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Rookery
Von der Decken’s Hornbill, a rare bird in Roost
  • Von der Decken’s Hornbill, profile

    Profile

  • Von der Decken’s Hornbill, in flight

    In flight

Hornbills

Von der Decken’s Hornbill

Tockus deckeni

  • rare
  • 49 km/h
  • Least Concern

Named for a 19th-century explorer. Males carry a red-and-ivory bill.

Population
Not quantified; BirdLife DataZone (2024 assessment) describes it as widespread and locally common, with a suspected decreasing population trend
Habitat
Dry savanna, thorn scrub, and subtropical/tropical dry shrubland/woodland; low forest dependency; reaches roughly 1,500 m elevation in Ethiopia (oiseaux-birds.com); higher upper-elevation figure (~2,080 m) could not be independently corroborated in this pass
Fun fact
Von der Decken's Hornbills form a documented mutualism with dwarf mongoose troops: the mongooses flush insects that the hornbills catch, while the hornbills act as aerial-predator sentinels, extending the mongooses' safe foraging time at termite mounds (corroborated independently via oiseaux-birds.com; consistent with published dwarf-mongoose/hornbill association literature, e.g. Rasa-type studies).
Range
East Africa: Ethiopia (mainly in and east of the Rift Valley), Somalia, Kenya (except northeast), and central Tanzania; Extent of Occurrence ~2,380,000 km² per BirdLife DataZone
Diet
Omnivorous ground forager: grasshoppers, locusts, beetles and their larvae, termites and ants, plus snails, mice, nestling birds, lizards, tree frogs, and seasonal seeds/berries
Size
0.47 m
Lifespan
15 years

More Hornbills

The next 12 of the 18 in the collection, after this one.