Ruddy Shelduck (Tadorna ferruginea)
Pallid Swift (Apus pallidus)
May only be confused with Egyptian Goose, but differs in short, dark legs, dark bill, thicker neck, rufous belly and lack of eye-patch. Black and white wings conspicuous in flight as in Egyptian Goose, but lacks thin, black stripe at rear of white coverts. Sexes quite similar. Male with ringed neck in breeding plumage, and female with more contrasting facial pattern. Immature similar to female, but with "dirty" white wing-patches. Less dependent on water than most other ducks.
Sound:Distinct voice and quite vocal. Nasal, trumpeting, donkey-like calls, often drawn out to a rattling, trill (Chewbacca of Star Wars). Male higher pitched than female.
Call/song:
Distribution:
Xeno-canto: map
Ecology:Birdlife ecology
Links:
Observation.org Latest observations
Image search Flickr NB! May give other species
CCVery similar to Common Swift, and often difficult to identify in the field. Seeing the birds against a darker background, as opposed to the sky, brings out some of the characters more clearly. Generally paler and more sandy brown than Common Swift. Differs further from C. Swift by: Rounder wing tip (outermost primary shorter than the next), slightly broader wings, broader and flatter head. White throat patch bigger and more prominent. The face seems paler, which brings out the dark eye-mask. Back slightly darker than upper part of wings. More contrast between outer and inner primaries. Underparts with more pronounced scaly pattern. Flight less acrobatic, with slightly slower wing-beats, more frequent gliding and much less twinkling turns.
Sound:Similar to Common Swift, but usually very helpful for ID. Almost di-syllabic, with marked accent on second syllable which rapidly drops in pitch, "srrrree-aah". Common swift has a more even call, with accents on first part, without the sudden pitch-drop.
Contact call:
Distribution:
Xeno-canto: map
Ecology:Birdlife ecology
Links:
Observation.org Latest observations
Image search Flickr NB! May give other species
CCSound recording:Creative Commons,www.xeno-canto.org,Carlos W.,http://creativecommons.org/licenses/by-nc-sa/4.0/