Least Concern — very widespread with large global population.

9–10 cm in length; a tiny, active leaf warbler with a slim bill, olive-green upperparts, pale underparts, and a striking yellow supercilium (eyebrow).

Migratory species; breeds in northern Siberia and parts of northeast Asia.

Winters in South Asia, Southeast Asia, and parts of southern China; a common winter visitor across India.

June to August in the breeding range.

Nests low in coniferous or mixed forests, usually in shrubs or near the ground; clutch typically 4–6 eggs.

During winter found in woodlands, forest edges, gardens, plantations, mangroves, and scrub; prefers areas with dense foliage.

Mainly insectivorous; feeds on small insects, caterpillars, aphids, spiders, occasionally taking berries in winter.