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A photo of a White-backed Mousebird (Colius colius)
White-backed Mousebird

White-backed Mousebird

Colius colius

The White-backed Mousebird, known scientifically as Colius colius, is a distinctive avian species, notable for its elongated body and tail. This bird measures approximately 34 cm in length, with the tail accounting for about half of this measurement. It has a weight range of 38 to 64 grams. The plumage is primarily grey, with a striking white stripe down the back, bordered by two black stripes. A dark red or maroon band is present at the base of the tail, adding to its unique appearance. The belly is a soft buff color. The bird's bill is a bluish white with a black tip, and it sports red legs and feet, completing its colorful ensemble.

Identification Tips

When identifying the White-backed Mousebird, look for its black-tipped bill, which is a key distinguishing feature among local mousebird species. The white stripe on the back is another diagnostic characteristic, although it is only visible when the wings are partially open. The bird's prominent crest and the red band at the tail's base are also helpful identification markers.

Habitat

The White-backed Mousebird is found in scrubby, dry habitats, including thornveld, fynbos scrub, and semi-desert regions. It is well-adapted to these arid environments, where it can often be seen flitting about in search of food.

Distribution

This species is distributed across the western and central regions of southern Africa, ranging from Namibia and southern Botswana eastwards to Central Transvaal and the Eastern Cape.

Behaviour

The White-backed Mousebird exhibits a shy demeanor, often remaining still in trees or taking flight at the first sign of humans. It displays parrot-like perching habits, frequently hanging from its legs rather than squatting, and may grip different upright branches with each leg. It is a highly social bird, with small groups often seen feeding and engaging in mutual preening. At night, these birds roost together in groups.

Song & Calls

The vocalizations of the White-backed Mousebird include a whistled "zwee-wewit" call, as well as a buzzing or crackling sound that may serve as an alarm or a means of maintaining contact within the group.

Breeding

Breeding can occur at any time of year when conditions are favorable. The nest is a large, well-concealed cup located in thickets. Both parents, along with helpers from previous clutches, contribute to feeding the nestlings.

Similar Species

The Speckled Mousebird can be distinguished from the White-backed Mousebird by its different colored beak, legs, and upperparts.

Diet and Feeding

As a frugivore, the White-backed Mousebird feeds on fruits, berries, leaves, seeds, and nectar. It is known to feed on the buds of certain plants, sometimes to the detriment of ornamental and fruit-bearing species. On lawns, it may consume grass stigmata and stamens. Its role in seed dispersal is significant, both for indigenous plants and invasive species.

Conservation status

The IUCN Red List classifies the White-backed Mousebird as Least Concern, indicating that it currently faces no significant threats to its survival.

White-backed Mousebird Sounds



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