Appearance:

Olive green upperparts, yellowish chest with gradual transition to off-white belly. Very similar to Willow Warbler, and most field characters are subtle and often hard to see. Distinguished by (usually) black, or dark-brown legs, only faint dark framing to ear-coverts, less marked supercilium. Shorter primary projection (1/2 to 2/3'rds the lenght of tertials), with regularly spaced tips (visible when wing folded). Wings more fan-shaped and less pointed than in Willow Warbler. Juveniles much less yellow below than in W.Warbler. Generally leaves a duller and greyer impression than W. Warbler, but plumage very variable. Frequently flicks tail, even sideways. Generally also more active when moving among the foliage.

Sound:

Contact/alarm call a soft, plaintive ascending "hooeet". Similar to W.Warbler, but shorter with a monosyllabic feel. Song a very distinct: "chiff-chaff-chiff-chiff-chaff-chiff", in a regular clock-like rhythm. Each syllable at seemingly random pitch, but no large intervals tonally. Sometimes "get stuck" at one note.

Contact call, song:

Distribution:

Wikipedia: map (se also Xeno-canto below)

Ecology:

Birdlife ecology

Links:

Observation.org Latest observations

Video IBC

Image search Flickr NB! May give other species

Sound search at Xeno-canto

Featherbase

CC

Appearance:

Rufous red face, throat and chest, framed in slate grey in adults of both sexes. Olive brown to grey upperparts and dull white underparts. Head rather large, and body rather stocky when plumage puffed, despite thin bill and slender legs. Juveniles lack the red front and are heavily spotted in buff on a dark brown body with barred chest. Adults pretty unmistakable when seen well. Flight usually low and darting, with quick changes of directions before disappearing in thick bushes. Posture usually erect with frequent flicking of tail and wings.

Sound:

Alarm call a thin, electric "tick", often in series with decelerating tempo. Song medium to very high pitched, with mostly clear tones with a liquid quality. Timbre reminiscent of Wren or Dunnock, but with a much more varied structure and tempo. Pitch ranges from very high to low, almost thrush-like, notes. No recognizable motifs. Often ends on a rising or falling pitch, giving it a "Chinese" accent.

Song:

Distribution:

Wikipedia: map (se also Xeno-canto below)

Ecology:

Birdlife ecology

Links:

Observation.org Latest observations

Video IBC

Image search Flickr NB! May give other species

Sound search at Xeno-canto

Featherbase

CC