Pearl-spotted Owlet (Glaucidium perlatum)

Cover image of Pearl-spotted Owlet by Ryan Tippett – Selinda, Botswana

The Pearl-spotted Owlet belongs to the family STRIGIDAE (typical owls). Strigidae are one of the two accepted owl families. The other being Tytonidae (barn owls and bay owls). Strigid owls vary greatly in size, but they all have large heads, large, slightly elongated eyes, a rounded facial disc, and a short, hooked bill. Many species have thickly feathered legs, and all have strong zygodactyl feet with well-developed talons. The plumage is soft and dense, and many species have erectile ear-like feathers on the crown that are unconnected to hearing. They are thought to serve behavioural or camouflage functions. Strigid owls occur worldwide on every continent except Antarctica, but the vast majority are found in the tropics. These owls occupy nearly all terrestrial habitats, though most species are forest-dwelling. This large family comprises roughly 228 living species in 23 genera. 10 species occur in southern Africa.

Identification

The Pearl-spotted Owlet is one of Africa’s smallest owl species, reaching 17 to 21cm in length. Males are slightly smaller than females and weigh up to 65g. Females weigh up to 100g. The sexes are otherwise alike in plumage colouration.

In adults, the facial disc is off-white. The back of the head has striking false black ‘eyes’ with a white outline. Slight ‘ear’ tufts are sometimes evident as low bumps. The upper parts are cinnamon-brown and covered in neat white spots. The underparts are white with large brown streaks. The tail and flight feathers are brown, with large white spots forming bars in flight. The bill and cere are pale greenish yellow. The eyes are bright yellow and the feet are yellowish-brown.

Juveniles resemble adults but have shorter tails and much reduced white spotting on the head and back. In juveniles, the false ‘eye spots’ are also much more obvious.

The Pearl-spotted Owlet is easily confused with the African Barred Owlet (Glaucidium capense). The latter has a finely barred (not spotted) head and back. It also has a blotched (not streaked) breast, with barring across the upper breast. The African Barred Owlet also lacks false eyespots and is larger, with a relatively larger head.

Status and Distribution

The Pearl-spotted Owlet is common across its range. It is widespread throughout the savannas of sub-Saharan Africa. It occurs from West Africa, extending eastward to Sudan and Ethiopia and southwards through East and Central Africa to South Africa.

In southern Africa, the Pearl-spotted Owlet is distributed across northern and central Namibia, throughout Botswana and Zimbabwe and the drier western parts of southern Mozambique, eastern Eswatini (Swaziland), and north-central and north-eastern South Africa.

The Pearl-spotted Owlet is not threatened. Its population is relatively secure, and its preferred habitat is widespread and relatively free from large-scale degradation. In southern Africa, the Pearl-spotted Owlet is also well represented in protected areas.

Habitat

The Pearl-spotted Owlet inhabits a wide range of woodland and bushveld habitats, especially Mopane woodlands and open thorn savanna with areas of sparse ground cover. It avoids dense woodland, forest, shrublands, and open grassland.

Behaviour

There is no evidence to suggest regular movements are undertaken, apart from juvenile dispersal. However, vagrants can appear outside their usual range, and local declines are regular during droughts.

The Pearl-spotted owlet is usually encountered singly or in pairs. It is often active by day, but hunts and calls mostly at night. Roosts in relatively open sites, staring intently at intruders and readily changing perches if disturbed. Flicks or wags its tail when alarmed or excited. Bathes regularly day or night when open water is available. The fight is fast, undulating, and somewhat woodpecker-like, on whirring wings.

The Pearl-spotted Owlet hunts mostly at night from a low perch. Most prey is taken from the ground, but they sometimes grab prey from foliage, off nests or in flight. They hunt opportunistically by day, often leading them to get mobbed by small birds. Its distinctive calls also attract small birds, which are occasionally captured. The Pearl-spotted Owlet feeds mainly on arthropods, especially grasshoppers, crickets, solifuges, beetles, harvester termites and termite alates. They also use their large, strong feet to hunt small vertebrates, including rodents, bats, lizards, snakes, frogs and birds up to the size of the Ring-necked Dove (Streptopelia capicola). They are also recorded to eat small snails and the chicks of other birds. May occasionally rob other birds and are known to eat fresh carrion.

The Pearl-spotted Owlet is monogamous. Pairs nest solitarily, and they are highly territorial. In optimal habitat, nests may be as close as 200 m apart. In lightly wooded habitat, population densities are limited by the availability of nesting sites. During courtship, the male takes food to the female. Before egg-laying, the female spends long periods calling softly from within the nest.

The Pearl-spotted Owlet nests in old holes excavated by large barbets or woodpeckers, less often in natural cavities. Nest holes 1.2 to 10 m above the ground are preferred. The Pearl-spotted Owlet also readily uses nest boxes. The same nest may be used in successive seasons. It competes for cavities with bees and a wide range of hole-nesting birds, including starlings, rollers, hoopoes, and hornbills.

In southern Africa, breeding mostly takes place in early summer, but records span September to February. Most eggs are laid from September to November. 2 to 4 plain white eggs are laid per clutch. The incubation period takes up to 29 days and is done mainly by the female. If a potential threat inspects the nest, the female may lie face down showing false ‘eye spots’. Newly hatched young are altricial. The female and chicks are fed mainly on food supplied by the male, by day or night. The nestling period lasts for 27 to 31 days. Fully fledged young remain near the nest in dense vegetation and are fed by both parents for at least another 2 weeks. The Pearl-spotted Owlet is probably single-brooded.

Further Resources

This page is adapted from the species text in the First Southern African Bird Atlas Project (SABAP1), 1997.

The use of photographs by Alan Manson, Andre Harmse, Andries de Vries, Deon van der Hoven, Gert Myburgh, Karis Daniel, Lance Robinson, Marius Meiring, Phillip Nieuwoudt, and Ryan Tippett is acknowledged.

Virtual Museum (BirdPix > Search VM > By Scientific or Common Name).

Other common names: Pearlspotted Owl (Alt. English); Witkoluil (Afrikaans); iNkovana (Zulu); Geparelde Dwerguil (Dutch); Chevêchette perlée (French); Perlkauz (German); Mocho-perlado (Portuguese).

List of species available in this format.

Recommended citation format: Tippett RM 2026. Pearl-spotted Owlet Glaucidium perlatum. Biodiversity and Development Institute. Available online at https://thebdi.org/2026/10/25/pearl-spotted-owlet-glaucidium-perlatum/

Bird identification, birding

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