Appearance:

Very large tern, with deep, dagger-like, blood-red bill with dark tip. Large, black cap reaching well below the eyes. Grey upperparts and white underparts. Rather short tail. Outer primaries distinctly darker than the rest of upperwing, and outer underwing almost black. Unmistakable from the size alone, and leaves a gull-like impression, lacking the elegance of smaller terns. Immatures with paler bill and white forehead (as in adult winter), and markedly speckled back. Hovers and dives. Often rests on the surface, feeding like a gull.

Sound:

Easily recognized by its very harsh calls. Sometimes likened to the sound of a plate of steel being dragged across a concrete floor. Similar in harshness to Grey Heron, but more drawn, with an accented middle; "Kraaeeet", or with a double syllable start "ka-ha-kraaaeet". Immature birds begs with a penetrating, sharp whistle.

Contact call:

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

CC

CC-photo:lgooch, Licence,Link.

CC-photo:Muchaxo, Licence,Link.

CC-photo:ajmatthehiddenhouse, Licence,Link.

Appearance:

Differs from Ringed Plover by bright yellow eyering (adults),only faint wing-bars, long tertials (covering the primaries) and slimmer more elongated body shape. Apart from the diagnostic eyering, adults show white band across crown, brown-grey legs (not orange) and dark bill. Juveniles also show only faint wing-bars, supercilium is faint, especially behind the eye, lower part of "mask" is pointed and bill is slimmer.

Sound:

Quite different from Ringed Plover. Sharper sounding, lacking Ringed's soft tone. Often starts with a rolling "r". Common calls are a two syllable "krrll-uuit" with a rising pitch or just a sharp, rolling "krrri-krrri". Also a longer rolling "krree-looo" with pitch rising in first syllable and falling in the second.

Contact, and alarm calls:

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

Featherbase

CC

Sounds:Recorded by Lauri Hallikainen,http://www.xeno-canto.org ,CC license