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Black-billed Barbet Lybius guifsobalito Scientific name definitions

Lester L. Short and Jennifer F. M. Horne
Version: 1.0 — Published March 4, 2020
Text last updated September 3, 2017

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Field Identification

16–18 cm; 35–57 g. Chunky, short-tailed, mostly black barbet . Both sexes with red forehead, face and throat to upper breast , mainly black body; some yellow to white on edges of flight-feathers and (when fresh) rectrices, also in wing-coverts; black bill has 1–2 “teeth”. Differs from L. torquatus in black lower underparts. Immature duller, red areas more orange and less extensive, bill without “teeth”.

Systematics History

Closely related to L. torquatus (similar size, coloration, displays, sexual duet roles), and each reacts strongly to playback of the other’s voice. Related also, less closely, to L. rubrifacies. Clinal decrease in size from N to S, but insufficient for racial differentiation; populations S from White Nile formerly separated as race ugandae. Monotypic.

Subspecies

Monotypic.

Distribution

E Sudan, Eritrea and W & C Ethiopia S to extreme NE DRCongo, C Uganda, W Kenya and CN Tanzania; range expanding in W Kenya. Recently reported from N Cameroon, so may occur in Central African Republic.

Habitat

Open woodland, such as Acacia and Combretum-Terminalia, bushed woods, edges of riverine forest and woods, gardens and cultivated areas with fruiting trees; even uses eucalyptus groves for singing. Occurs at 900–1600 m, up to 2200 in Ethiopia.

Movement

Resident and sedentary.

Diet and Foraging

Berries and fruits, including figs , guavas, papayas, peppers and others, as well as ants, termites, beetles, Hemiptera and other insects. Gleans along branches and in foliage, picking fruit and insects; flycatches at intervals, extensively so when termites are flying.

Sounds and Vocal Behavior

Complex greeting ceremonies with chattering, grating, “kek” notes, often leading to duet or occasionally 3-bird singing, with distinct sexual songs, one (male?) lower “a-poot”, other higher-pitched “kik-ka”, in synchrony over 3–10 seconds or more; duet  similar to that of L. torquatus but noisier, faster; “wup-wup-” in series by lone bird, possibly location or gathering call; during encounters grating calls, “kek” calls, chatter calls, and frequent loud bill-wiping and wing-fluttering.

Breeding

Oct–Dec, but Mar–May in Ethiopia. Groups of up to 7 perform greeting ceremonies, with bowing, tail-swinging, erection of head feathers, bill-wiping, tail-cocking; also floating flight display to perch, and wing-fluttering; 1 duetter cocks tail, partly spreads wings, as other slightly raises wings, bows and pivots to each side. Roosting cavities recorded at 5 m and 8 m, and nest presumably similar, but no details. No reliable information available on clutch size, incubation and nestling periods, and relative behaviour of pair and helpers.
Not globally threatened. Locally common in SE of range; probably locally common elsewhere. Seems to be reasonably adaptable; occurs in some degraded habitats, and is expanding its range in places. This species’ biology, however, is little known and requires study. Present in Awash National Park (Ethiopia) and Murchison Falls National Park (Uganda).
Distribution of the Black-billed Barbet - Range Map
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  • Year-round
  • Migration
  • Breeding
  • Non-Breeding
Distribution of the Black-billed Barbet

Recommended Citation

Short, L. L. and J. F. M. Horne (2020). Black-billed Barbet (Lybius guifsobalito), version 1.0. In Birds of the World (J. del Hoyo, A. Elliott, J. Sargatal, D. A. Christie, and E. de Juana, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.blbbar3.01
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