Little Ringed Plover (Charadrius dubius)
Swift (Apus apus)
Differs from Ringed Plover by bright yellow eyering (adults),only faint wing-bars, long tertials (covering the primaries) and slimmer more elongated body shape. Apart from the diagnostic eyering, adults show white band across crown, brown-grey legs (not orange) and dark bill. Juveniles also show only faint wing-bars, supercilium is faint, especially behind the eye, lower part of "mask" is pointed and bill is slimmer.
Sound:Quite different from Ringed Plover. Sharper sounding, lacking Ringed's soft tone. Often starts with a rolling "r". Common calls are a two syllable "krrll-uuit" with a rising pitch or just a sharp, rolling "krrri-krrri". Also a longer rolling "krree-looo" with pitch rising in first syllable and falling in the second.
Contact, and alarm calls:
Distribution:
Xeno-canto: map
Ecology:Birdlife ecology
Links:
Observation.org Latest observations
Image search Flickr NB! May give other species
CCSounds:Recorded by Lauri Hallikainen,http://www.xeno-canto.org ,CC license
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
Image search Flickr NB! May give other species
CC