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Ngorongoro Conservation Area
Volcanoes National Park
Kilimanjaro Bird HubCuckoos & CoucalsBlack Cuckoo
Black Cuckoo on Mount Kilimanjaro
Cuculus clamosus
Black Cuckoo at a Glance
Secretive dark-plumaged brood-parasitic cuckoo — Cuculidae
Important Elevation Note
No verified Kilimanjaro route-specific elevation range has been established. It uses woodland, riparian forest and thickets across the wider African landscape; this is not an altitude guarantee for any trekking route.
About the Black Cuckoo
The Black Cuckoo (Cuculus clamosus) is a secretive dark-plumaged African cuckoo of woodland, riparian forest and thickets. It is predominantly an insect feeder, especially hairy caterpillars, and is an obligate brood parasite with intra-African seasonal movements. It is listed on the Avibase Kilimanjaro National Park checklist; no trailed route sighting is verified.
Natural Habitat
Woodland, forest edges and riparian vegetation with tall trees
Miombo and broadleaf woodland, riparian forest, forest edges and thickets with tall trees.
Dense woodland, riparian forest, forest edges and thickets with tall trees; it commonly stays concealed in the canopy while searching foliage for caterpillars and other insects.
Where to See the Black Cuckoo on Mount Kilimanjaro
Park-level Avibase checklist occurrence — route unverified
The Black Cuckoo is included on the Avibase Kilimanjaro National Park checklist. That supports park-level occurrence but does not establish a verified record on Marangu, Machame, Lemosho, Umbwe, Rongai, Northern Circuit or Shira.
| Route | Status | Details |
|---|---|---|
| Marangu Route | Park checklist — route unverified | Included on the Avibase Kilimanjaro National Park checklist. No route-specific sighting has been independently verified; do not advertise any route as a confirmed viewing location. |
| Machame Route | Park checklist — route unverified | Included on the Avibase Kilimanjaro National Park checklist. No route-specific sighting has been independently verified; do not advertise any route as a confirmed viewing location. |
| Lemosho Route | Park checklist — route unverified | Included on the Avibase Kilimanjaro National Park checklist. No route-specific sighting has been independently verified; do not advertise any route as a confirmed viewing location. |
| Umbwe Route | Park checklist — route unverified | Included on the Avibase Kilimanjaro National Park checklist. No route-specific sighting has been independently verified; do not advertise any route as a confirmed viewing location. |
| Rongai Route | Park checklist — route unverified | Included on the Avibase Kilimanjaro National Park checklist. No route-specific sighting has been independently verified; do not advertise any route as a confirmed viewing location. |
| Northern Circuit | Park checklist — route unverified | Included on the Avibase Kilimanjaro National Park checklist. No route-specific sighting has been independently verified; do not advertise any route as a confirmed viewing location. |
| Shira Route | Park checklist — route unverified | Included on the Avibase Kilimanjaro National Park checklist. No route-specific sighting has been independently verified; do not advertise any route as a confirmed viewing location. |
African Majestic Adventure does not guarantee wildlife sightings. Encounters depend on natural movements, habitat conditions and weather.
Nature, Call, Diet & Behaviour
How the Black Cuckoo lives in its natural habitat
Male: plaintive three-part whistle, sometimes remembered as "I am so sick"; another call is a faster bubbling series.
Diet & Feeding
Mainly hairy caterpillars and other insects, including beetles and other arthropods.
Behaviour
Generally encountered alone; concealed in woodland canopy or dense foliage; may call from a perch, sometimes at night.
Breeding
Obligate brood parasite; the female lays in another bird nest; known hosts include Laniarius boubous and shrikes.
Communication
Male: plaintive three-part whistle, sometimes remembered as "I am so sick"; another call is a faster bubbling series.
Distribution, Conservation & Fieldcraft
Where it lives, what threatens it, how to see it
Distribution in Africa & Tanzania
Wide distribution across sub-Saharan Africa, including Tanzania; intra-African seasonal movements vary regionally.
Conservation - Least Concern
Least Concern (LC) globally. Least Concern (LC); global population trend not stated without a current authoritative assessment.
Best Time to Observe
Listen for the plaintive three-part whistle day or night. Scan upper branches and dense canopy; use binoculars; do not repeatedly play recordings to force a response; avoid suspected nests.
Photography Tips
- Listen before looking
- Watch shaded trails & forest edges
- Listen for the plaintive Whoo, whoo, wheee and scan upper branches
- Telephoto, keep distance, no playback near nests
Ecological Importance
Its consumption of hairy caterpillars and other insects connects it to woodland food webs, and its brood-parasitic relationship illustrates complex interactions between birds and their hosts.
Responsible Birdwatching
- Stay on authorised paths
- Never chase or disturb
- No feeding, no loud playback
- Photograph from distance, leave no litter
Field Guide — Black Cuckoo
Secretive dark-plumaged brood-parasitic cuckoo — Cuculidae
What Is the Black Cuckoo?
How to Identify It
Similar Species
- African Cuckoo (Cuculus gularis) — grey plumage, hollow hoop-hoop.
- Red-chested Cuckoo (Cuculus solitarius) — rusty underparts.
- Jacobin Cuckoo (Clamator jacobinus) — larger crested cuckoo.
- Black Cuckooshrike — different shape and call.
Natural Habitat
Where to Find It
Diet and Feeding Behaviour
Primarily insectivorous. Hairy caterpillars are especially important, along with other moth and butterfly larvae, beetles and other insects and arthropods. It searches among leaves and branches, often in the canopy; it may occasionally take prey in the air or on the ground.
Behaviour and Daily Activity
Generally encountered alone. It may remain concealed in woodland canopy or dense foliage, perch for extended periods calling, and make swift, shallow hawk-like flights between trees. It is usually easier to detect by its whistle than by a sustained view.
Calls and Communication
A plaintive, slightly descending or rising three-part whistle, commonly rendered Whoo, whoo, wheee and remembered as I am so sick. It can also give a faster bubbling or accelerating series, sometimes exchanged between birds. Calls may be given day or night.
Breeding and Nesting
An obligate brood parasite. It does not build a conventional nest: the female lays an egg in the nest of another bird. Known hosts include boubous and shrikes in the genus Laniarius, though host relationships vary geographically. The host incubates the egg and raises the chick.
Distribution
Wide distribution across sub-Saharan Africa, including Tanzania. It undertakes intra-African seasonal movements; patterns and timing vary between populations and regions. It should not be described as uniformly resident or as following one fixed migration calendar.
Conservation Status
Least Concern (LC) globally; no decreasing or increasing global trend is stated here without a current authoritative species-specific assessment. No local Kilimanjaro population estimate or trend is published.
Best Time to Observe
Listen for the plaintive three-part whistle day or night. Scan upper branches and dense canopy; use binoculars; do not repeatedly play recordings to force a response; avoid suspected nests.
Photography Tips
Listen first, then look high in woodland and riparian vegetation. Use binoculars or a telephoto lens from a respectful distance. Never play repeated calls to attract or disturb the bird or a possible host nest.
Ecological Importance
Its consumption of hairy caterpillars and other insects connects it to woodland food webs, and its brood-parasitic relationship illustrates complex interactions between birds and their hosts.
Why It Matters in Tanzania
A secretive but important Kilimanjaro-checklist cuckoo — an insect eater whose unusual three-part whistle can be heard where the bird itself is difficult to see.
Responsible Birdwatching
Remain on authorised trails, avoid disturbing birds and nests, never handle eggs or chicks, do not feed wild birds, keep noise and playback to a minimum, photograph from distance and leave habitats undisturbed.
Frequently Asked Questions
Black Cuckoo on Mount Kilimanjaro
What is the Black Cuckoo?
The Black Cuckoo (Cuculus clamosus) is a medium-sized African cuckoo recognised by its dark plumage, long tail and distinctive three-part whistle. It occurs across much of sub-Saharan Africa.
What is the scientific name of the Black Cuckoo?
Its scientific name is Cuculus clamosus. It belongs to the order Cuculiformes and the family Cuculidae.
How big is the Black Cuckoo?
The Black Cuckoo is approximately 29-31 centimetres long. It has a slender body, pointed wings and a relatively long tail.
What does the Black Cuckoo look like?
Adults are generally black or blue-black, sometimes with a subtle gloss. Some individuals show faint pale barring below. The tail is long and may have narrow white tips. The bill and legs are dark.
What does the Black Cuckoo eat?
It feeds mainly on hairy caterpillars and other insects, including beetles. It usually searches for prey among foliage and branches.
Where does the Black Cuckoo live?
It inhabits woodland, miombo woodland, riparian forest, forest edges and thickets with tall trees. It may also use open woodland and some well-wooded human-modified habitats.
Is the Black Cuckoo found in Tanzania?
Yes. Tanzania lies within the Black Cuckoo's African range, and the species is included in Tanzanian bird records and checklists.
Is the Black Cuckoo recorded in Kilimanjaro National Park?
Yes. It appears on the Avibase Kilimanjaro National Park bird checklist. This supports its park-level listing but does not establish regular sightings on individual climbing routes.
Can I see the Black Cuckoo on the Marangu Route?
The Black Cuckoo is listed for the wider Kilimanjaro National Park area, but a verified modern route-specific record for the Marangu trekking trail has not been established here. A sighting should not be promised.
Can I see the Black Cuckoo on the Machame Route?
The park checklist includes the species, but it does not confirm the Machame Route as a regular viewing location. Any encounter would depend on natural bird movements and local conditions.
What does the Black Cuckoo sound like?
It gives a plaintive three-part whistle, commonly rendered as "Whoo, whoo, wheee" and often remembered as "I am so sick". It can also produce a faster bubbling series of notes.
Is the Black Cuckoo a migratory bird?
The species undertakes intra-African seasonal movements, although patterns vary between populations and regions. It should not be described as universally resident or as following one fixed migration calendar.
Does the Black Cuckoo build its own nest?
No. It is an obligate brood parasite. The female lays her egg in the nest of another bird, which incubates the egg and raises the cuckoo chick.
Which birds raise the Black Cuckoo's young?
Known hosts include boubous and shrikes belonging to the genus Laniarius. Specific host relationships vary geographically, so local host species should not be claimed without evidence.
Why is the Black Cuckoo called a brood parasite?
It is called a brood parasite because it relies on another bird species to incubate its egg and raise its chick rather than raising its own young in a conventional nest.
Is the Black Cuckoo completely black?
Adults are generally very dark, often appearing black or blue-black. Some individuals show faint pale barring on the lower underparts, and plumage can vary geographically.
Is the Black Cuckoo a forest bird?
It uses several wooded habitats, including forest, woodland, riparian vegetation and thickets. It is not restricted to dense montane forest.
What is the conservation status of the Black Cuckoo?
The Black Cuckoo is classified globally as Least Concern (LC). Do not confuse this global category with a locally measured population trend.
How can I observe a Black Cuckoo?
Listen for its distinctive three-part whistle and scan upper branches and dense foliage. Binoculars can help locate a concealed bird. Observe from a respectful distance and avoid disturbing possible host nests.
Does African Majestic Adventure guarantee Black Cuckoo sightings during a Kilimanjaro trek?
No. African Majestic Adventure does not guarantee wild bird sightings. Although the species is listed on the wider Kilimanjaro National Park checklist, individual encounters depend on natural movements, habitat, season and chance.
Discover the Forest Birds of Mount Kilimanjaro
Explore Mount Kilimanjaro with African Majestic Adventure and experience the remarkable biodiversity of its mountain forests. Choose a trekking route and ask our team about the birdlife and natural habitats along your journey.
African Majestic Adventure is committed to memorable mountain experiences while encouraging responsible travel and respect for Tanzania natural environments.