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

Appearance:

Unmistakable in breeding plumage with golden, speckled upperparts and white-bordered black throat and belly. Male generally blacker than female, but due to regional differences, some females may be darker than males from other areas. Juveniles and birds in winter plumage, lacks the black underparts, and could be mistaken for Grey Plover. Differs from that species in more golden coloured back, less heavy bill and neck and by being slightly smaller. In flight easily told apart from Grey Plover, Pacific Golden Plover and American Golden Plover by white axillaries.

Sound:

Most common call at breeding ground a disyllabic, melancholic and wailing whistle with the end falling in pitch. In song flight also a trilling, warbling and cyclic "preecaria-preecaria-preecaria". Contact call a straight, short "kluee".

Contact call at breeding ground:

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