Alström's Warbler

How to identify

Field marks

1. Yellow eye-ring, possibly indistinct above eye
2. Bright yellow-green underparts
3. Gray crown with black stripes

Male, female and young

Female averages smaller than male.

Voice

Song is simple, usually starting with a short “chip”, followed by 2–5 short, whistle-like notes, rendered as “che-witchy-chew-witchy-chew”.

Similar species

Grey-crowned Warbler

Alström's Warbler has a larger bill, a shorter tail and more conspicuous white feather edges on the outer tail feathers.

Bianchi's Warbler

Alström's Warbler has a distinctly higher-pitched song with a wider frequency range.

Where and when it's recorded

Busiest months: January–February · Most records: Thailand, China, Vietnam

Alström's Warbler has been recorded at 174 of the 8,276 birding hotspots we track, in 5 countries and regions.

Records by month Northern Hemisphere

Where it's recorded most

1. Khao Yai NPThailand164 records
2. Khao Yai NP – Pha Dieo Dai boardwalkThailand155 records
3. Pak Sha OHong Kong (China)143 records

Countries and regions with the most records

ThailandChinaVietnamCambodiaMyanmar (Burma)

eBird records via GBIF up to 2024-12-31. A record means someone listed it; more records partly mean more birders, not more birds.

Questions