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African Grey Hornbill (Lophoceros nasutus) perched in open woodland
KILIMANJARO BIRD GUIDE · HORNBILLS

African Grey Hornbill

Lophoceros nasutus

A slender, distinctive hornbill of African woodlands and savannas — grey plumage, long decurved bill and active, buoyant flight between tree and bush.

Taxonomy note: The current Kilimanjaro checklist uses Lophoceros nasutus. Older references commonly use Tockus nasutus. Both names refer to the African Grey Hornbill.

About 45–51 cm Open woodland & savanna Least Concern

African Grey Hornbill — Quick Facts

FamilyBucerotidae
OrderBucerotiformes
Scientific NameLophoceros nasutus (older Tockus nasutus)
LengthApproximately 45–51 cm
HabitatOpen woodland, savanna and deciduous woodland
DietMainly insects and other animal prey; fruit and seeds; figs
ConservationLeast Concern — IUCN Red List
Kilimanjaro StatusIncluded in the current Avibase Kilimanjaro National Park bird checklist

African Grey Hornbill at a Glance

The African Grey Hornbill is a medium-sized, predominantly tree-dwelling hornbill found across much of sub-Saharan Africa. It is associated with a variety of wooded environments, from open savanna and deciduous woodland to the edges of denser forest, making it a flexible member of African bird communities.

Its inclusion in the Kilimanjaro National Park bird checklist establishes its relevance to the mountain's birdlife. The species should be understood as part of the wider Kilimanjaro bird community, without assuming that it occurs on every climbing route or at every elevation.

The African Grey Hornbill is an active feeder. It moves between trees and bushes, searching for insects, caterpillars, fruit and seeds.

How to Identify the African Grey Hornbill

Adult male

  • Predominantly grey plumage with a paler underside.
  • Long, decurved bill with a casque along the upper mandible.
  • Bill and casque are darker in males.
  • A long, graduated tail that is especially noticeable in flight.
  • Pale wing markings that become more visible during flight.
  • Buoyant, undulating flight — alternating wingbeats and short glides.

Adult female and juveniles

  • Female is smaller with a smaller, more yellowish casque and a reddish bill tip.
  • Males have a darker bill and casque.
  • Juveniles generally show a duller bill and smaller casque.
  • Key field marks: grey plumage, pale underside, long graduated tail and a curved, casqued bill.
  • Distinguishable from the Red-billed Hornbill by the grey plumage and darker bill; more brightly patterned than Von der Decken's Hornbill.

Habitat and Occurrence Around Kilimanjaro

The African Grey Hornbill uses a range of wooded habitats, including:

  • Open savanna with scattered trees
  • Deciduous woodland
  • Acacia woodland
  • Woodland edges
  • Scrub with suitable trees and bushes
  • Margins of denser forest

Its inclusion in the Kilimanjaro National Park bird checklist confirms its place in the mountain's documented birdlife.

However, the checklist does not establish a particular climbing route, camp or altitude band as a regular viewing location. Do not claim that it is regularly seen on Marangu, Machame, Lemosho, Rongai or the Northern Circuit without route-specific evidence.

Responsible viewing note

Visitors should observe wooded habitats and open woodland carefully, ideally with a knowledgeable local guide. Individual sightings depend on local conditions and bird activity.

Diet and Feeding Behaviour

The African Grey Hornbill is an omnivorous bird, but animal prey forms an important part of its diet.

Its food includes:

  • Grasshoppers and locusts
  • Beetles and other insects
  • Mantids
  • Caterpillars
  • Other insect larvae
  • Small lizards
  • Occasionally bird nestlings
  • Figs and other fruits
  • Acacia seeds and other available seeds

It generally searches for food in trees and bushes, moving between branches and foliage. It can also catch insects while moving through the air.

Fruit and seeds become particularly useful food sources when insect availability changes, including during dry periods.

Behaviour and Daily Activity

African Grey Hornbills are generally territorial and are often found in pairs or small family groups.

They spend much of their time in trees and bushes, moving from one feeding area to another. Their flight is buoyant and undulating, with alternating wingbeats and short glides.

They are active during daylight and use their calls to communicate with their partners and maintain contact.

The species is largely sedentary across much of its range. Do not describe it as a regular long-distance migrant in the Kilimanjaro area without supporting local records.

Pairs or Small Groups

Often found in pairs or small family groups, actively calling to maintain contact.

Undulating Flight

Alternating wingbeats and short glides — watch for this flight pattern between trees.

Territorial & Sedentary

Mainly sedentary across much of their range; not a regular long-distance migrant.

Active During Daylight

Uses calls to communicate; most activity occurs in the morning and late afternoon.

Calls and Communication

The African Grey Hornbill produces a distinctive piping or whistling call. It may give a single note or repeat the sound in a short series.

During display, the bird may raise its bill and open its wings while calling.

These vocalisations can help birdwatchers locate the species among trees and woodland vegetation.

Field tip

Avoid adding invented call spellings and do not claim that the bird calls from a specific Kilimanjaro route or camp. If you want an audio feature, use an authenticated Lophoceros nasutus recording.

Breeding and Nesting

African Grey Hornbills use natural cavities in trees for nesting, a characteristic feature of hornbill breeding biology.

During nesting, the female seals herself inside the cavity using a mixture of mud, droppings and food material, leaving a narrow opening through which the male provides food.

The male supplies the female and later the chicks while the female remains inside the cavity during the early nesting period. When the female eventually emerges, both parents participate in caring for the young.

Do not add a specific Kilimanjaro breeding calendar or claim local nesting records without reliable evidence.

Conservation Status

The African Grey Hornbill is classified as Least Concern on the IUCN Red List assessment cited by the IUCN Hornbill Specialist Group.

Although the species has a broad African distribution, maintaining suitable woodland, mature trees and connected feeding habitats remains important.

The global conservation classification should not be presented as proof that every local population is stable or unaffected by habitat changes.

African Grey Hornbill on a Kilimanjaro Birdwatching Experience

Kilimanjaro supports birdlife across a changing range of habitats. The African Grey Hornbill is one of the species included in the mountain's bird checklist and represents the hornbills associated with open woodland and savanna environments.

Its grey appearance, long bill and active feeding behaviour make it an interesting bird for visitors who enjoy observing African wildlife.

African Majestic Adventure can help visitors discuss nature-focused experiences in northern Tanzania. Bird sightings depend on habitat, season, weather and observation conditions, so encounters with individual species cannot be guaranteed.

African Grey Hornbill - Frequently Asked Questions

Planning a birdwatching visit? These answers may help

1Is the African Grey Hornbill found on Kilimanjaro?

Yes. It is included in the current Kilimanjaro National Park bird checklist.

2What is the scientific name of the African Grey Hornbill?

The current checklist name is Lophoceros nasutus.

3Is Tockus nasutus the same species?

Yes. Tockus nasutus is an older scientific combination for the African Grey Hornbill.

4How large is the African Grey Hornbill?

It measures approximately 45-51 cm in length.

5What does an African Grey Hornbill look like?

It has grey plumage, a pale underside, a long tail and a curved bill with a casque.

6What is the difference between male and female African Grey Hornbills?

Adult males have a darker bill and casque. Females have a smaller, more yellowish casque and a reddish bill tip.

7Where does the African Grey Hornbill live?

It inhabits open savanna, deciduous woodland, wooded grassland and the edges of denser forests.

8What does it eat?

It eats insects, caterpillars, beetles, grasshoppers, small lizards, fruit and seeds.

9Does the African Grey Hornbill eat figs?

Yes. Figs and other fruits are part of its diet.

10Does it mainly feed in trees?

Yes. It is predominantly arboreal and searches for much of its food in trees and bushes.

11Can it catch insects in flight?

Yes. It can catch flying insects as part of its feeding behaviour.

12What sound does the African Grey Hornbill make?

It produces plaintive piping or whistling notes, which may be given singly or in a series.

13Does it live alone?

It is commonly found in pairs or small family groups.

14Is the African Grey Hornbill migratory?

It is largely sedentary across much of its range, although local movements may occur.

15Where does it build its nest?

It nests in natural cavities in trees.

16Does the female seal herself inside the nest?

Yes. The female seals the cavity entrance, leaving a narrow opening through which the male passes food.

17What is its conservation status?

It is classified as Least Concern on the IUCN Red List assessment cited by the IUCN Hornbill Specialist Group.

18Can I see it while climbing Kilimanjaro?

It is included in the Kilimanjaro National Park bird checklist, but a sighting on a particular climbing route or at a particular camp is not guaranteed.

19How is it different from the Red-billed Hornbill?

The African Grey Hornbill has predominantly grey plumage and a darker bill, while the Red-billed Hornbill has a conspicuous reddish bill and more strongly contrasting plumage.

20Can African Majestic Adventure help arrange birdwatching?

Yes. Contact African Majestic Adventure to discuss a nature-focused itinerary and suitable birdwatching opportunities.

African Grey Hornbill (Lophoceros nasutus) perched in open woodland

Plan Your Kilimanjaro Nature Experience

African Majestic Adventure can help you plan a nature-focused experience on northern Tanzania — including bespoke birdwatching days, low-impact safari travel and climbs with time for the checklist birds of Kilimanjaro National Park.

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