Appearance:

Falcon or cuckoo-like, nocturnal bird with long tail and slender, pointed wings. Unmistakable when seen in areas where no other species of nightjars occur, or when singing. Hard to distinguish from Red-necked Nightjar in the field, but smaller size, smaller head compared to body and shorter tail give indications. If plumage is seen clearly, note general tone (grey brown), dark front edge of arm, broader upper wing-bar and small white throat patch.

Sound:

Song unique among birds, but quite similar to Mole cricket. A mechanical, continuous slur, like the sound of a distant motorbike. As opposed to the Mole Cricket, it often "shifts gear" by changing pitch to a note approximately a fourth below the drone. Flight call a peculiar "kew-eek", with a nasal and frog-like timbre.

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

CC-photo:Andrej Chudy, Licence,Link,

CC-Photo:Paul Cools, Licence,Link.

Appearance:

Largely unmistakable. Huge, almost all white, bird with black flight feathers, long red legs and bill. Juveniles with dark bill tip and pale legs. Easily told from Black Stork in flight by all white underparts, including wing coverts. Only flight feathers black. Wing pattern similar to White Pelican and Egyptian Vulture. Often soars high in flocks like raptors.

Sound:

Mostly silent. Loud, modulated bill-clattering from both sexes is heard during courtship/display.

Display 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

CC-sound:Tomas Belka, Licence,Link.