Appearance:

Most likely to be confused with Bar-tailed Godwit, but easily recognized in flight by its contrasting black and white wings and tail. More difficult to identify when not flying. Generally much leggier, more elegant and upright than Bar-tailed, and with straighter bill. Tibia especially long. Summer plumage with barred/spotted belly (never in Bar-tailed), and orange base of bill. Juveniles with scaled back, not arrow-shaped streaking. Adult winter with mainly uniformly grey plumage, and short supercilium not reaching behind the eye.

Sound:

Quite vocal at breeding ground, but mostly silent elsewhere. Varied repertoire of mewing and sharp sounds, some resembling Bar-tailed, some almost lapwing-like. Most characteristic call is the display call; a sharp and mewing, rhythmic "kew-ku-weeewee". Generally the calls are evenly accentuated (as opposed to Bar-tailed).

Display call and contact calls:

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

Sounds:Recorded by Patrick Åberg,http://www.xeno-canto.org ,CC license

Appearance:

All black swift with small white throat patch. Very difficult to separate from Pallid swift and Plain Swift. Pallid Swift; brownish plumage tone (best seen against darker background), bigger throat-patch than swift, scale pattern on body more prominent, wing-tips slightly rounded, "saddle" darker than wings, and more contrast between darker outer primaries and inner. Plain Swift; throat patch smaller and more diffuse than swift, wings and body more slender, tail noticeably deeper forked.

Sound:

A shrilling trill "zreeeee" of about 1 -2 seconds length, gradually rising in pitch with accentuated firs half, then falling from the middle of phrase. Often continued with a dry lower pitched "trrrrrr" before calling again. Very vocal at breeding area, and often a flock will call together. Despite being quite similar to Pallid Swift, the call is probably the best field character to separate the two. Pallid puts the stress on the ending of the call, followed by a quick fall in pitch (dynamics like moaning with a quick release). Plain Swift calls similar to Common Swift, but differs in slightly fluctuating pitch during the call, and a loss of resonance towards the ending (thinner sounding).

Song/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

Featherbase

CC