Appearance:

Very similar to Balearic Warbler but breeding range does not overlap. Also easily confused with sympatric Dartford Warbler due to similar build with long tail, high crown, short wings and spiky bill. Told from latter by all over lead-grey plumage, lacking vinous underparts. Female similar to male but lacks dark lore and throat is paler . Immature birds are very similar to immature Dartford Warbler and are best identified by call, but have less brown back, paler throat and dirtier and greyer underparts.

Sound:

Song hurried and similar to both Sardinian, Dartford and Spectacled Warbler, but is softer with more tinny timbre. Interwoven soft rolling "trrrrtrrr" usually become more prominent towards the end of each phrase which often is concluded by 3-4 clear whistling "wit". Alarm call a short, Stonechat-like and grating "treck", very different from both Balearic and Dartford Warbler.

Alarm call and song:

Distribution:

Xeno-canto: map

Ecology:

Birdlife ecology

Links:

Observation.org Latest observations

Video IBC

Image search Flickr NB! May give other species

Sound search at Xeno-canto

CC

CC-photo:Wouter Van Gasse, Licence,Link.

CC-photo:Wouter Van Gasse, Licence,Link.

CC-photo:Kasper Hendriks, Licence,Link.

CC-photo:Roland Wantia, Licence,Link.

Appearance:

Summer: Black throat framed in fine white stripes at the sides, and a chequered black back. Winter: More contrast between dark and white parts than in Red-Throated Diver. Marked transition between dark neck and white front, and the dark grey crown extends below the eye. In all plumages: Heavier neck and bill than Red-Throated, and bill usually held straight. Visibly protruding chest when swimming. Head shape sometimes squarish. Usually shows big white flank patch.

Sound:

Song: a strong, very resonant, full bodied, low whistling with most syllables rising in pitch: "co clooo-eee, co clooo-eee, co clooo-eee". Also a short grunting "karr".

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