White-breasted mesite (Mesitornis variegatus)

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White-breasted mesite
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White-breasted mesite fact file

White-breasted mesite description

KingdomAnimalia
PhylumChordata
ClassAves
OrderGruiformes
FamilyMesitornithidae
GenusMesitornis (1)

The white-breasted mesite is a ground-dwelling bird with chestnut-brown plumage on the upperparts, white underparts dotted with black crescents, and a distinctive creamy or white line over the eye (2) (3). It is one of only three species in the Mesitornithidae family, all of which are found in Madagascar. Like the other two species, the white-breasted mesite has short, round wings and although it is capable of flight, it spends almost all of its time on the ground (3). When moving about its forest habitat it has a characteristic silhouette, with a short, straight bill, short legs, and with the head, back and broad tail all held horizontally. In the early morning and during the day the melodic song of the white-breasted mesite can be heard (3).

Synonyms
Mesitornis variegata.
French
Mésite variée.
Size
Length: 31 cm (2)
Weight
103 – 111 g (2)
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White-breasted mesite biology

This secretive, terrestrial bird is generally found in groups of two to four (3), consisting of an adult breeding pair and their most recent young (2). They walk around the forest floor, with their body horizontal and their head rocking slight forwards and backwards, rummaging amongst dead leaves and probing the ground in search of food (3). The white-breasted mesite feeds mostly on invertebrates (small adults and larvae), but it also consumes some plant matter. Its diet varies according to the season, but includes crickets, cockroaches, spiders, beetles, centipedes, moths, flies and seeds (2).

The white-breasted mesite may be seen resting on a carpet of dead leaves in the shade, and at night, they perch together on a low branch. Only rarely does this bird fly; if in danger, it runs on a zigzag course, frequently freezing in an attempt to confuse the pursuer, and will only fly a few metres if necessary (3).

November to January is the peak of the egg-laying season for the white-breasted mesite. This apparently monogamous bird, forms long-lasting bonds and lays clutches of one to three eggs in a simple platform-like nest of interwoven twigs, situated close to the ground in a clump of vegetation (2). The eggs are white with rust-coloured spots (3), and hatch to reveal red-brown chicks (2)

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White-breasted mesite range

Endemic to Madagascar, the white-breasted mesite is known from just a few widely separated sites in the north and west of the island, and one site in the east (2) (4).

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White-breasted mesite habitat

The white-breasted mesite inhabits dry deciduous forest, from sea level up to 150 metres. There is also one record of the white-breasted mesite in rainforest at 350 metres above sea level (4).

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White-breasted mesite status

Classified as Vulnerable (VU) on the IUCN Red List 2007 (1).

IUCN Red List species status – Vulnerable

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White-breasted mesite threats

The forest within the small range of the white-breasted mesite is being lost to slash-and-burn agriculture, uncontrolled fires, and intensive commercial exploitation for timber, charcoal and firewood (2) (4). As a result of this habitat destruction, numbers of this Vulnerable bird are suspected to be declining (4). In addition, this bird is occasionally hunted (4), with even adults incubating their eggs known to have been taken (2).

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White-breasted mesite conservation

The white-breasted mesite occurs in a number of officially protected areas, including the Menabe forest, Ankarafantsika Strict Reserve, Ankarana Special Reserve and Analamera Special Reserve (4). However, this protected status does not exclude these areas from all threats. For example, the Menabe forest is increasingly threatened by illegal logging and slash-and-burn agriculture, caused by immigration and the resultant population growth (4). Reducing illegal activities and destructive agriculture in areas such as Menabe is a necessary measure to protect the dry forests of Madagascar and its threatened avian inhabitants (4).

View information on this species at the UNEP World Conservation Monitoring Centre.
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Find out more

For further information on the white-breasted mesite see:

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Authentication

This information is awaiting authentication by a species expert, and will be updated as soon as possible. If you are able to help please contact:
arkive@wildscreen.org.uk

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Glossary

Deciduous
A plant that sheds its leaves at the end of the growing season.
Endemic
A species or taxonomic group that is only found in one particular country or geographic area.
Invertebrates
Animals with no backbone.
Larvae
Stage in an animal’s lifecycle after it hatches from the egg. Larvae are typically very different in appearance to adults; they are able to feed and move around but usually are unable to reproduce.
Monogamous
Having only one mate during a breeding season, or throughout the breeding life of a pair.
Slash-and-burn
The cutting and burning of forests or woodlands to create space for agriculture or livestock.
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References

  1. IUCN Red List (September, 2007)
    http://www.iucnredlist.org
  2. del Hoyo, J., Elliott, A. and Sargatal, J. (1996) Handbook of the Birds of the World. Volume 3: Hoatzin to Auks. Lynx Edicions, Barcelona.
  3. Langrand, O. (1990) Guide to the Birds of Madagascar. Yale University Press, New Haven and London.
  4. BirdLife International (May, 2008)
    http://www.birdlife.org/datazone/species/index.html?action=SpcHTMDetails.asp&sid=2954&m=0
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Image credit

White-breasted mesite  
White-breasted mesite

© Louise Jasper

Louise Jasper
21 St Peters Road,
Huntingdon,
PE29 7AA
United Kingdom
Tel: 01480393574
louisedjasper@gmail.com
http://louisedjasper@gmail.com

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