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:

Small, compact lark with finch-like bill. 30% smaller than Skylark. Primaries almost completely covered by tertiaries, as opposed to Lesser Short-toed Lark. Upperparts typical lark-like, while underparts are almost unstreaked. Most individuals shows small, black shoulder patch. Bill deep, but pointed. Base colour variable, but western birds usually warmer brown than eastern. Lacks crest. Crown is rather flat (often rufous) and head squarish. Tail black with buff centre and pure white outer feathers. Often forms finch-like flocks when not breeding. Flight moderately undulating.

Sound:

Contact call a dry, short and House Sparrow-like "chirrrp", with a high-pitched component. Shorter than Skylark, and crisper and straighter than Lesser Short-toed Lark. Song usually performed high in the air, but can also be heard from the ground. 2 types of song. Either in short phrases with a typical duration of 1-3 seconds each, with stuttering introduction, and falling cadence. Other song type more confusing and harder to identify, consisting of a continuous stream of energic improvisation. Listen for interwoven contact calls, and lack of Lesser Crested Lark calls. Frequently mimicks other species.

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