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Overview
Sunda warbler

Sunda warbler

Wikipedia

The Sunda warbler is a species of Old World warbler in the family Phylloscopidae. It is found only in Indonesia.

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Distribution

Region

Greater Sunda Islands

Typical Environment

Occurs in montane and submontane evergreen forests of Sumatra and Java, with a preference for cool, moist slopes and ridges. It uses forest interiors, edges, and mature secondary growth, and will forage along trails and in bamboo thickets. The species is most common in mid to upper strata but also drops into the understory while following mixed flocks. It tolerates some habitat disturbance where sufficient canopy and midstory remain.

Altitude Range

600–2400 m

Climate Zone

Highland

Characteristics

Size10–11 cm
Wing Span15–18 cm
Male Weight0.008 kg
Female Weight0.0075 kg
Life Expectancy5 years

Ease of Keeping

Beginner friendly: 1/5

Useful to know

The Sunda warbler is a small leaf-warbler of the Old World warbler family, confined to the Indonesian Sunda Islands. It is often detected by its high, thin song as it forages restlessly through foliage. Like many Phylloscopus warblers, it can be tricky to identify, relying on subtle head stripes and overall tone. It frequently joins mixed-species flocks in montane forest.

Gallery

Bird photo
Bird photo

Behaviour

Temperament

active and somewhat skulking

Flight Pattern

short rapid wingbeats with quick darts between perches

Social Behavior

Often travels singly or in pairs, frequently joining mixed-species flocks with other small insectivores. Nests are cup-shaped and placed low in shrubs or dense vegetation. Breeding pairs defend small territories during the nesting season, with the male singing from mid-canopy perches.

Migratory Pattern

Resident

Song Description

Song is a series of thin, high-pitched whistles and trills delivered in short phrases. Calls include sharp seep notes and soft tics used while foraging with flocks.

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