Least honeyguide

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Least honeyguide
Indicator exilis.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Piciformes
Family: Indicatoridae
Genus: Indicator
Species:
I. exilis
Binomial name
Indicator exilis
(Cassin, 1856)

The least honeyguide (Indicator exilis) is a small species of bird in the family Indicatoridae. It is found in sub-Saharan Africa.

Contents

Description

The least honeyguide (Indicator exilis) is a small member of the family Indicatoridae.

The plumage of the adult least honeyguide is an olive brown, with dark grey colouration on its underside and face. Pale spots are visible above the bill as well as on the tail when in flight. [2] A narrow white line from the front of the eye to near the nostril can be seen on adult birds and a malar stripe can be seen stretching from the mandible to the birds ear-coverts. [3]

A small bird, the least honey guide measures about 14 cm and weighs anywhere between 12 and 23 g. [4] Males of the species tend to be noticeably larger in size than the females. [3]

Subspecies

The subspecies of I. exilis have often been confused for other closely related species. [5] There are four known subspecies of I. exilis : I.e. exilis, I.e.poensis, I.e. cerophagus and I.e. pachyrhychus. [5] These subspecies were initially thought to be the same as each other, however it came to researchers attention that they were in-fact separate. Even now there is some inconsistencies about the distribution and division of the subspecies.

Known slight physical differences between the subspecies are as follows:

I.e. exilis - Wings edged in part with a slightly more bronze colouration than those of I.e. cerophagus [6]

I.e. cerophagus - paler and more yellow in colour than I.e. exilis, and wings have edged parts in a more yellow hue [6]

I.e. parchyrhychus - darker neck and back than I.e. cerophagus [6]

Range and Habitat

Indicator exilis is most commonly found in forested areas, including tree plantations, primary and secondary forests, and forest shrub mosaics throughout its range in sub-Saharan Africa. [5] It is found from Guinea-Bissau to South Sudan and southwards to Angola and Zambia. [3] This species is often found in close proximity to bee's nests. [5] The species has been found at elevations up to 1600m. [7]

In total, I. exilis can be found in Angola; Burundi; Cameroon; Central African Republic, the Congo, The Democratic Republic of the Côte d'Ivoire, Equatorial Guinea, Gabon, Ghana, Guinea, Guinea-Bissau, Kenya, Liberia, Nigeria, Rwanda, Senegal, Sierra Leone, South Sudan, Sudan, Tanzania, United Republic of Togo, Uganda and Zambia. [8]

Lifespan and Development

Little is known about the lifespan and development of I. exilis in particular, but it may be similar to that of other closely related honeyguides.

GBIF generated mapped occurrences of I. exilis retrieved from gbif.org on October 1st 2023 Indicator exilis range map.png
GBIF generated mapped occurrences of I. exilis retrieved from gbif.org on October 1st 2023

Behaviour and Communication

The call of the least honeyguide is a repeated “chreeya” like sound. [2] This recordings of this call can be found in the database Xeno-Canto.

Honeyguides are named for the few species in the Indicator family that have been seen to lead humans to bee hives. [9] While the least honeyguide has not been recorded displaying this behaviour, it does eat bee's wax and larvae like its human-guiding relatives. [5]

Food Habits

The least honeyguide’s diet is widely varied. This small bird will eat bees wax, bee and fly eggs and larva, as well as particular insects and fruit. [5] The species spends approximately 66 minutes at a time feeding, with several individuals feeding together at times. [5]

Reproduction

Timing of the breeding season if the least honeyguide is impacted by the region it is found in. birds located in Liberia tend to mate August through March, February through May in Cameroon, and January through June in Zaire. [5] The birds are territorial and defend their singing territories. [5]

Members of the family Indicatoridae are known to be nest parasites, leaving their eggs in the nests of other species to be raised. [10] At times the female honeyguide will destroy any other eggs in that nest to give her own offspring the best chance of care from the nest parents. [10]

Ecosystem Role and Niche

Little is known about the ecosystem role and niche of I. exilis.

Conservation Status

The Least honey guide has been classified in 2016 as "Least Concern" by the IUCN Red List of Threatened Species. [8] Population trends for the species are unknown, and little is known about the species population details though it is not believed to be declining rapidly. [11] I. exilis has a very large range and does not appear vulnerable under the range size criterion. [11] It has been called "widespread, but not common" throughout its range. [5]

Economic Significance

There is little known of any economic significance of the least honeyguide.

Specimen and Sequence Information

There are two specimens of the least honeyguide recorded in the Barcode of Life Data System (BOLD). [12] Information on this species can be accessed at the Barcode of Life Database website, under TaxID: 115404. [13]

Both of these specimens were acquired from the country of Gabon. [12] One is currently held in the Smithsonian Institution, National Museum of Natural History in Washington, and the other is found in the Civic Museum of Natural History in Carmagnola. [12]

As well, the National Center for Biotechnology Information (NCBI) has assigned I. exilis a taxonomy ID number (Taxonomy ID 381870). [14] There are seven genomic sequences, as well as six protein sequences available in this database for the species, providing detailed genomic information on the species. [14] More information on the species is available through this database.

Additional Taxonomic Information

Additional information on the taxonomy of I. exilis can be found below under the links seen in the Taxon Identifiers box.

Related Research Articles

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<span class="mw-page-title-main">Greater honeyguide</span> Species of bird

The greater honeyguide is a bird in the family Indicatoridae, paleotropical near passerine birds related to the woodpeckers. Its English and scientific names refer to its habit of guiding people to bee colonies. Claims that it also guides non-human animals are disputed.

<span class="mw-page-title-main">Yellow-rumped honeyguide</span> Species of bird

The yellow-rumped honeyguide is a sparrow-sized bird in the honeyguide family that is found in Asia, mainly in montane forests along the Himalayas. They are very finch-like but the feet are strong and zygodactyl, with two toes facing forward and two backward. They perch on honeycombs and feed on wax. Males tend to be territorial and stay near honeycombs while females and juveniles forage widely. They are brood parasites, laying their eggs in the nests of tree-hole breeders, possibly barbets.

<i>Apis laboriosa</i> Species of insect

Apis laboriosa or Himalayan giant honey bee, is the world's largest honey bee; single adults can measure up to 3.0 cm (1.2 in) in length. Before 1980, Apis laboriosa was considered to be a subspecies of the widespread Apis dorsata, the giant honey bee, but in 1980 and for almost 20 years thereafter it was elevated to the rank of a separate species. It was classified once again as a subspecies of Apis dorsata by Michael S. Engel in 1999, but was confirmed as a full species in 2020 on the basis of co-occurrence with Apis dorsata at many sites with no sign of interbreeding. It is highly adapted to its highland habitat in behavior.

<span class="mw-page-title-main">Malaysian honeyguide</span> Species of bird

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<span class="mw-page-title-main">Yellow-billed kingfisher</span> Species of bird

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<span class="mw-page-title-main">Abyssinian ground thrush</span> Species of bird

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<span class="mw-page-title-main">Pygmy palm swift</span> Species of bird

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<span class="mw-page-title-main">Honeyguide greenbul</span> Species of bird

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<span class="mw-page-title-main">Red-throated bee-eater</span> Species of bird

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<span class="mw-page-title-main">Abyssinian scimitarbill</span> Species of bird

The Abyssinian scimitarbill is a species of bird in the family Phoeniculidae. The term Abyssinia, is an old name for the region of Ethiopia, and scimitar refers to a curved sword, which its bill resembles. It is found in Djibouti, Ethiopia, Kenya, Somalia, South Sudan, Tanzania, and Uganda. The bird is non migratory, diurnal, and terrestrial. Their nests are sometimes parasitized by the greater honeyguide which are favored by some because they can guide to beehives.

The spotted honeyguide is a species of bird in the family Indicatoridae. It is found in Angola, Benin, Cameroon, Central African Republic, Republic of the Congo, Democratic Republic of the Congo, Ivory Coast, Equatorial Guinea, Gabon, Gambia, Ghana, Guinea, Guinea-Bissau, Liberia, Mali, Nigeria, Senegal, Sierra Leone, South Sudan, Togo, and Uganda.

<span class="mw-page-title-main">Pallid honeyguide</span> Species of bird

The pallid honeyguide is a species of bird in the family Indicatoridae. The species is also known as the eastern least honyeguide. It is found in Angola, Democratic Republic of the Congo, Kenya, Malawi, Mozambique, Tanzania, Uganda, Zambia, and Zimbabwe.

<span class="mw-page-title-main">Lesser honeyguide</span> Species of bird

The lesser honeyguide is a species of bird in the family Indicatoridae.

<span class="mw-page-title-main">Scaly-throated honeyguide</span> Species of bird

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<span class="mw-page-title-main">Double-toothed barbet</span> Species of bird

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<span class="mw-page-title-main">Green-backed honeybird</span> Species of bird

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References

  1. BirdLife International (2016). "Indicator exilis". IUCN Red List of Threatened Species . 2016: e.T22680638A92870066. doi: 10.2305/IUCN.UK.2016-3.RLTS.T22680638A92870066.en . Retrieved 12 November 2021.
  2. 1 2 "Least Honeyguide - eBird". ebird.org. Retrieved 2023-09-04.
  3. 1 2 3 Chapin, James P. (2008-06-28). "Sibling Species of Small African Honey-Guides". Ibis. 104 (1): 40–44. doi:10.1111/j.1474-919X.1962.tb08626.x.
  4. Oiseaux.net. "Indicateur menu - Indicator exilis - Least Honeyguide". www.oiseaux.net. Retrieved 2023-09-04.
  5. 1 2 3 4 5 6 7 8 9 10 Short, Lester L.; Horne, Jennifer F. M. (2020). "Least Honeyguide (Indicator exilis), version 1.0". Birds of the World. doi:10.2173/bow.leahon2.01. ISSN   2771-3105. S2CID   216378170.
  6. 1 2 3 Phillips, Anna J.; Oosthuizen, J.H.; Siddall, Mark E. (April 2011). "Redescription, Phylogenetic Placement, and Taxonomic Reassignment ofMesobdella lineata(Sciacchitano, 1959) (Hirudinida: Arhynchobdellida)". American Museum Novitates (3711): 1–11. doi:10.1206/3711.2. ISSN   0003-0082. S2CID   83725817.
  7. "Least Honeyguide (Indicator exilis) :: xeno-canto". xeno-canto.org. Retrieved 2023-10-02.
  8. 1 2 "IUCN Redlist - Least Honeyguide". IUCN Redlist. October 1, 2023. Retrieved October 1, 2023.
  9. Short, Lester L.; Horne, Jennifer F.M. (2020-03-04), Del Hoyo, Josep; Elliott, Andrew; Sargatal, Jordi; Christie, David; De Juana, Eduardo (eds.), "Greater Honeyguide (Indicator indicator)", Birds of the World, Cornell Lab of Ornithology, doi:10.2173/bow.grehon2.01, S2CID   216417239 , retrieved 2023-09-17
  10. 1 2 "Indicatoridae - honeyguides | Wildlife Journal Junior". nhpbs.org. Retrieved 2023-09-04.
  11. 1 2 "Least Honeyguide (Indicator exilis) - BirdLife species factsheet". datazone.birdlife.org. Retrieved 2023-10-01.
  12. 1 2 3 "Indicator exilis | Taxonomy Browser | BOLDSYSTEMS". www.boldsystems.org. Retrieved 2023-09-17.
  13. "Indicator exilis | Taxonomy Browser | BOLDSYSTEMS". boldsystems.org. Retrieved 2023-10-01.
  14. 1 2 "Indicator exilis". NCBI. Retrieved 2023-10-01.