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:

Small, stocky, white heron with short bill and neck. Heavy jowl. Plumage all white, except in breeding birds which show varying amount of buff on back, crown and chest. Bill usually yellow, but turns orange-red in breeding birds, and is dark in immatures. Legs pale greyish green, but darker in young birds. May be confused with both Little Egret and Squacco Heron in flight. Differs from Little Egret in leg color and shorter, thicker neck and bill. Told from Squacco Heron by unstreaked body/head, and smaller bill. Generally leaves a less elegant impression than other small herons.

Sound:

Usually silent away from breeding ground. In the colonies a chorus of various coarse sounds can be heard. Most distinct is a disyllabic "rick-rack". Other sounds includes short, guttural utterings, or drawn, harsh shrieks.

Contact 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