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The forest batis or short-tailed batis (''Batis mixta'') is a
species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...
of
bird Birds are a group of warm-blooded vertebrates constituting the class Aves (), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweigh ...
in the
wattle-eye Platysteiridae is a family of small, stout passerine birds of the African tropics. The family contains the wattle-eyes, batises and shrike-flycatchers. They were previously classed as a subfamily of the Old World flycatchers, Muscicapidae. These ...
family,
Platysteiridae Platysteiridae is a family of small, stout passerine birds of the African tropics. The family contains the wattle-eyes, batises and shrike-flycatchers. They were previously classed as a subfamily of the Old World flycatchers, Muscicapidae. These ...
occurring in eastern Africa.


Taxonomy

The forest batis was described by the English ornithologist
George Ernest Shelley Captain George Ernest Shelley (15 May 1840 – 29 November 1910) was an English geologist and ornithologist. He was a nephew of the poet Percy Bysshe Shelley. Shelley was educated at the Lycée de Versailles and served a few years in the Grenad ...
in 1889 and given the
binomial name In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, bot ...
''Pachypora mixta''. It is now placed in the
genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...
'' Batis'' that was introduced by the German zoologist
Friedrich Boie Friedrich Boie (4 June 1789 – 3 March 1870) was a German entomologist, herpetologist, ornithologist, and lawyer.Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). ''The Eponym Dictionary of Reptiles''. Baltimore: Johns Hopkins University ...
in 1833. The
specific epithet In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, bot ...
''mixta'' is Latin for "mixed" or "mingled".
Reichenow's batis Reichenow's batis (''Batis reichenowi'') is a passerine bird in the wattle-eye family, Platysteiridae occurring in southeast Tanzania in east Africa. It was formerly treated as a subspecies of the forest batis. Taxonomy Reichenow's batis was d ...
(''Batis reichenowi'') was formerly treated as a
subspecies In biological classification, subspecies is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (morphology), but that can successfully interbreed. Not all species ...
. The forest batis is now treated as
monotypic In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispec ...
.


Description

The forest batis is a small species measuring in length and weighing . The adult male has bluish grey upperparts with a black mask across the face, a white spot on the lores and white spots on the rump which are revealed when the long feathers are fluffed out. The underparts are white with a black breast band and blackish thighs. The wings are black with a white stripe, the bill and legs are black while the eyes are red. Females are similar in pattern but the upper part colour is more olive in tone, the wings more reddish brown and has a mottled rufous breast band and browner wings. Juveniles similar to female but markings less well differentiated. The short black tail is edged with white.


Distribution and habitat

The forest batis is found in east Africa from the south eastern coast of
Kenya ) , national_anthem = "Ee Mungu Nguvu Yetu"() , image_map = , map_caption = , image_map2 = , capital = Nairobi , coordinates = , largest_city = Nairobi , ...
and north eastern
Tanzania Tanzania (; ), officially the United Republic of Tanzania ( sw, Jamhuri ya Muungano wa Tanzania), is a country in East Africa within the African Great Lakes region. It borders Uganda to the north; Kenya to the northeast; Comoro Islands and ...
including
Mount Kilimanjaro Mount Kilimanjaro () is a dormant volcano in Tanzania. It has three volcanic cones: Kibo, Mawenzi, and Shira. It is the highest mountain in Africa and the highest free-standing mountain above sea level in the world: above sea level and ab ...
, along the northern
Eastern Arc Mountains The Eastern Arc Mountains is a chain of mountains found in Kenya and Tanzania. The chain runs from northeast to southwest, with the Taita Hills being in Kenya and the other ranges being in Tanzania. They are delimited on the southwest by the fau ...
of Tanzania, i.e.
Nguru Nguru may refer to: * Pila Nguru, an aboriginal people of Australia * Nguru (flute), a small Māori nose flute from New Zealand * Nguru, Nigeria, a town and LGA in Yobe State * Hadejia-Nguru wetlands, northern Nigeria * Nguru Lake, a lake whic ...
, Nguu,
Usambara Mountains The Usambara Mountains of northeastern Tanzania in tropical East Africa, comprise the easternmost ranges of the Eastern Arc Mountains. The ranges of approximately long and about half that wide, are situated in the Lushoto District of the Tang ...
,
Pare Pare may refer to: People with the name * Emmett Paré (1907-1973), tennis player * Pare, former member of Kotak, an Indonesian band * Pare Lorentz (1905-1992), American film director * Richard Pare (born 1948), English photographer * Paré, a ...
and Kilimanjaro. It is also found in coastal south eastern Tanzania. The forest batis is found in coastal forest,
miombo The Miombo woodland is a tropical and subtropical grasslands, savannas, and shrublands biome (in the World Wide Fund for Nature scheme) located primarily in Central Africa. It includes four woodland savanna ecoregions (listed below) characterized b ...
woodland and in montane forest from sea level up to on Kilimanjaro. It frequents the lower levels of forest and the undergrowth.


Behaviour

The habits of the forest batis are little known, there have been indications of breeding behaviour in May and June in Kenya, September and October in Tanzania and a single nest with a clutch of 2 eggs has been recorded. Like other batises the largest groups seen are small family groups and pairs are territorial. Calling males make a repetitive, slow series of hu-hu-hu-hu whistles and they puff their white throat feathers out while performing this song.


References

* Fjeldså, Jon; Bowie, Rauri C. K. & Kiure, Jacob (2006
The forest batis, ''Batis mixta'', is two species: description of a new, narrowly distributed ''Batis'' species in the Eastern Arc biodiversity hotspot.
''
Journal of Ornithology The ''Journal of Ornithology'' (formerly ''Journal für Ornithologie'') is a scientific journal published by Springer Science+Business Media on behalf of the Deutsche Ornithologen-Gesellschaft. It was founded by Jean Cabanis in 1853, becoming the o ...
'', 147 (4): 578–590. {{Taxonbar, from=Q1307511
forest batis The forest batis or short-tailed batis (''Batis mixta'') is a species of bird in the wattle-eye family, Platysteiridae occurring in eastern Africa. Taxonomy The forest batis was described by the English ornithologist George Ernest Shelley in 188 ...
Birds of East Africa
forest batis The forest batis or short-tailed batis (''Batis mixta'') is a species of bird in the wattle-eye family, Platysteiridae occurring in eastern Africa. Taxonomy The forest batis was described by the English ornithologist George Ernest Shelley in 188 ...
Taxonomy articles created by Polbot