Appearance:

Olive green upperparts, yellowish chest with gradual transition to off-white belly. Very similar to Chiff-chaff, and most field characters are subtle and often hard to see. Distinguished by (usually) pale, yellow-brown legs, dark framing to ear-coverts, stronger supercilium. Long primary projection (often 3/4ths the length of tertials) with irregularly spaced tips (visible when wing folded). Wings slightly more pointed than in Chiff-chaff, and not so fan-shaped. Juveniles often with whole underparts yellow. Frequently flicks tail, but not sideways (unlike Chiff-chaff). Generally also more calm when moving among the foliage.

Sound:

By far most easily identified by it's call or song. Contact/alarm call a soft, plaintive ascending "hoo-eet". Similar to Chiff-chaff, but first part more drawn, giving it a disyllabic feel. Song: A 3-5 second, falling phrase of soft, rippling "svi-svi" sounds, starting high with some attack, and then falling in a mellow manner. The phrase lacks any conclusion, and diminishes both in strength and tempo.

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:

In all plumages: Brown, unstreaked (or faintly streaked) back, grey bill, only faint wing-bars (or none), distinct white base to primaries and streaked throat. Both sexes with pale eye-ring and pale cheek patch. Breeding male distinct with slate grey head, cinnamon back, red chest and red forehead. Females and juveniles easily confused with Twite or Redpoll but note back and face pattern.

Sound:

Flight-call a quick and "bouncing" "gig-gig" or "tchett-tchett". Most often disyllabic utterances, while Twite seems to vary more the number of syllables. Tone harder and more bouncing. Song a varied, sweet stream of contact calls, mimicry and trills with a staccato feel. Most easily recognized by the frequently interwoven, disyllabic contact calls.

Calls, 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