Overview

Distribution

Angola (not N), S DR Congo, Tanzania (not N) south to extreme N Namibia, N and E Botswana and further south to all of E South Africa

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Source: Afrotropical birds in the RMCA

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Ecology

Habitat

Habitat and Ecology

Systems
  • Terrestrial
  • Freshwater
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Open woodland

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Source: Afrotropical birds in the RMCA

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Dispersal

Movements and dispersal

Resident

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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2012

Assessor/s
BirdLife International

Reviewer/s
Butchart, S. & Symes, A.

Contributor/s

Justification
This species has an extremely large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). Despite the fact that the population trend appears to be decreasing, the decline is not believed to be sufficiently rapid to approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size has not been quantified, but it is not believed to approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.
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Population

Population
The global population size has not been quantified, but the species is reported to be common in most of its range (del Hoyo et al. 2002).

Population Trend
Decreasing
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Wikipedia

Black-collared Barbet

The black-collared barbet (Lybius torquatus) is a species of bird in the Lybiidae family. It is found in Sub-Saharan Africa through Angola, Botswana, Burundi, Democratic Republic of the Congo, Kenya, Lesotho, Malawi, Mozambique, Namibia, Rwanda, South Africa, Swaziland, Tanzania, Uganda, Zambia, and Zimbabwe.

Lybius torquatus
Lesser Honeyguide nestling, a brood parasite of barbets, waiting to be fed

Bird Calls[edit]

The black-collared barbet is one of the many duetting species in the Lybius genus and it regularly uses duetting in its day-to-day life. There are no solitary song instances heard by this species.[2] Also, the repertoire of the duets do not vary greatly.[3] This species is readily recognized by its loud duet, commonly rendered as "too-puddly too-puddly too-puddly" or "too-doodle too-doodle"[2].... accompanied by wing-flicking. In addition to the wing-flicking, the birds in the pair face each other while calling and lean forward while bowing ceremoniously to each other. This bird produces a variety of calls including its snarling warning call and loud buzzing. The snarling could be the initiating sound of the duet.[2]

The "too-puddly" song is actually an antiphonal duet. That means that one bird out of the pair sings the first note, then the other bird in the pair sings the second note. To bystanders, this does not sound like it comes from two different birds.[4] It has distinct sexual duet roles after a greeting ceremony and the partner's notes do differ. The birds do not sing simultaneously, but are synchronized in their duets.[3] The time between when one bird stops singing to when the other bird in the pair picks the song up is called the auditory response time for the duet. The approximate auditory response time for this bird is 178 ms.[2]

This species also incorporates more wing and flight displays into their greeting ceremonies, mating, and territorial displays.[3] It is a gregarious species, often acting in concert when driving off intruders and roosting together (up to 15 recorded) in nest holes. Their flight is direct with a loud whirring of wings.

Physical Description[edit]

The black-collared barbet usually is about 20–25 cm long, plump-looking and has a large head. It also has the heavy bill fringed with bristles that is characteristic of the Lybius genus.[5] This barbet has a very obvious black collar and head which gives reference to its name. It also has a fire-engine red coloring around the eyes and beak.[4] It has morphologically variable coloring because there is a replacement of a red head with a black head. It also has a more intense color and is larger than other barbets. This bird is also sexually monomorphic, which means that there is generally no phenotypic difference between the males and females of this species. The morphology, size and behavior are basically the same.[3]

Diet/Feeding[edit]

These barbets are mostly solitary birds that eat a variety of fruits and vegetables. They will often visit plantations and find food there. They eat fruits whole and the seed pits are regurgitated later. Black-collared barbets can also feed on insects, centipedes, lizards, frogs and geckos, though this does not occur as often.[5]

Breeding[edit]

The L. torquatus species has a breeding season from December to February.[2]

References[edit]

  1. ^ BirdLife International (2012). "Lybius torquatus". IUCN Red List of Threatened Species. Version 2013.2. International Union for Conservation of Nature. Retrieved 26 November 2013. 
  2. ^ a b c d e Payne, R. B., and N. J. Skinner. "Temporal Patterns of Duetting in African Barbets." Ibis 112.2 (1970): 173-183. Web.
  3. ^ a b c d Short, Lester L., and Jennifer F. Horne. "A Review of Duetting, Sociality and Speciation In Some African Barbets (Capitonidae)." Condor 85.3 (1983): 323-32. Web.
  4. ^ a b "Africa’s Barbets." 10,000 Birds. N.p., n.d. Web. 03 Dec. 2013.
  5. ^ a b "Black-collared Barbets.", (Lybius Torquatus). N.p., n.d. Web. 03 Dec. 2013.
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