Boulder Chat
Pinarornis plumosus
Large, unique, sooty-colored chat with a proportionately small head and long broad white-tipped tail (except on central feathers), often seen only on spread tail. White spots in wings are obvious only in flight. Immature is paler. Pairs and family groups prefer rocky granite hills and outcrops that have light tree cover, especially embedded within Mopane and Miombo woodland. Mobile, they scuttle and bound over rocks and perch in trees, tail regularly raised or fanned. Gives a loud varied collection of high-pitched whistles and trills, often likened to a squeaky wheel.
Identification
The boulder chat is a large chat, 25 cm (9.8 in) in length, with brownish-black plumage and white tips to the outer tail feathers. In flight, a row of small white spots can be seen on the edge of the primary and secondary coverts. Females are similar to males but have a slightly duller plumage.
Taxonomy
The boulder chat was formally described in 1876 by the English ornithologist Richard Bowdler Sharpe. He introduced a new genus specifically for this species and coined the binomial name Pinarornis plumosus. The genus name combines the Ancient Greek pinaros meaning "dirty" with ornis meaning "bird". The specific epithet plumosus is Latin and means "feathered" or "downy". <p>Although formerly classified in the family Muscicapidae, a 2020 phylogenetic study, the results of which were followed by the International Ornithological Congress, indicates that Pinarornis is in fact a basal clade within the thrush family Turdidae.
- Scientific name
- Pinarornis plumosus
- Authority
- Sharpe, 1876
- Order
- Passeriformes
- Family
- Muscicapidae
- Genus
- Pinarornis
Range and habitat
The species is native to Southern Africa, including Botswana, Malawi, Mozambique, Zambia, and Zimbabwe. There are distinct populations in the far west of Botswana and southern Zimbabwe; north eastern Zimbabwe, extending into western Mozambique; and a third population in eastern Zambia extending up the Luangwa valley into Malawi.The boulder chat inhabits well-wooded savanna terrain with large granite boulders or scree, usually in woodland areas, especially miombo. This species belongs to a monotypic genus which has no near relatives and it is considered that it evolved on the southern African granite shield, which formation's extent is almost identical to the distribution of the boulder chat.
- Migration
- Resident species
Behavior
The species is most often seen around large boulders, running and bounding on the ground. It often cocks its tail over its back. Eggs are laid in September to January, with a peak in October and November. After breeding the family remains together as a party until the next breeding season.
Conservation
The IUCN currently classifies the boulder chat as Least Concern. The species may however be under some pressure from habitat loss due to the invasive weed Lantana camara.
- Population trend
- stable
Photos
Distribution
Bird Calls
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