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Overview
Newton's sunbird

Newton's sunbird

Wikipedia

Newton's sunbird, or the São Tomé sunbird is a species of bird in the family Nectariniidae. It is endemic to São Tomé Island. It is one of the smallest sunbirds. In general, the bird has dark olive upperparts - the male has an iridescent green-purple throat and upper breast region, while females have a dull olive throat and yellowish underparts, but underparts in female youth do not develop into yellow until later sexual maturity.

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Distribution

Region

Gulf of Guinea islands

Typical Environment

Occurs throughout São Tomé Island in a variety of habitats, from primary and secondary forest to forest edges, plantations, and village gardens. It favors areas with abundant flowering shrubs and trees and will also use cacao and coffee estates for nectar resources. The species adapts well to disturbed habitats as long as flowers and small arthropods are available. It forages at all forest strata, often from understory to mid‑canopy.

Altitude Range

Sea level to 1600 m

Climate Zone

Tropical

Characteristics

Size8–10 cm
Wing Span12–15 cm
Male Weight0.006 kg
Female Weight0.007 kg
Life Expectancy4 years

Ease of Keeping

Beginner friendly: 1/5

Useful to know

Newton's sunbird, also called the São Tomé sunbird, is one of the smallest sunbirds and is found only on São Tomé Island. Males have a striking iridescent green‑purple throat patch used in display, while females are duller with yellowish underparts that develop fully at maturity. It is an important pollinator for many island plants and readily visits flowering trees in gardens and plantations.

Gallery

Bird photo
Bird photo
Bird photo
Bird photo
Chrysococcyx cupreus in a spawn of Anabathmis newtonii - MHNT

Chrysococcyx cupreus in a spawn of Anabathmis newtonii - MHNT

Behaviour

Temperament

active and moderately territorial at flowering plants

Flight Pattern

short rapid wingbeats with frequent hovering at flowers

Social Behavior

Usually seen singly, in pairs, or small family groups. Males defend rich nectar sources with short chases. The nest is a small, pendant structure woven from plant fibers and spider silk, typically suspended from a twig or palm frond with a side entrance. Both parents feed the young.

Migratory Pattern

Resident

Song Description

High-pitched, thin twittering phrases interspersed with sharp tsip notes. Calls are rapid and metallic when agitated near feeding territories.

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