Appearance:

Stocky martin with broad (but pointed) wings, broad tail and broad head. Mostly dusky brown with paler underparts, except almost black under wing-coverts, and fairly dark vent. Most tail-feathers with small, white "window" visible from below. Immature similar to adults, but with pale fringes to coverts. Flight less acrobatic than other martins, with frequent, long glides. Strays less away from breeding grounds than congeners.

Sound:

Most heard is a House Martin-like, but less rolling, "prit" or "check". Other contact sounds include a plaintive "peeuuu". Song an inconspicuous, staccato series of twittering notes, with a wagtail-like timbre.

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

Appearance:

Very large, mostly unmistakable bird. Grey upperparts, white underparts and yellow/yellowish bill. Keeps neck retracted when flying (as opposed to crane). May be mistaken for Purple Heron, but back of neck grey, not brown. Bill heavy and dagger-shaped. Neck thicker and less angular than in Purple Heron. Unmarked cheeks.

Sound:

Quite vocal. Most common call a short, far reaching and extremely harsh, rasping sound. At breeding ground a varied repertoire of harsh and clattering sounds.

Flight 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

Featherbase

CC