Purple Swamphen (Porphyrio porphyrio)
Long-tailed Jaeger (Stercorarius longicaudus)
Largest rail in VP. Clearly bigger than coot, and almost twice the size of Moorhen. Generally unmistakable with its dark, violet blue plumage, long, robust legs and heavy bill. Under tail coverts white. Red frontal shield and bill, pinkish red legs. Immature birds with duller coloured legs, duller plumage and faintly greyish/whitish underparts. Trailing legs obvious in flight. Swims readily.
Sound:Rich repertiore and very vocal. Sounds range from soft, mewing and laughing to hard, extremely shrill trills. Generally louder, and shriller than congeners. Often merges into, or starts with diagnostic, extremely hard trill "krrrrriiit".
Contact calls:
Distribution:
Xeno-canto: map
Ecology:Birdlife ecology
Links:
Observation.org Latest observations
Image search Flickr NB! May give other species
CCBreeding plumaged adults with streamers unmistakable (streamers comprising two thirds of total tail length). Adult plumage shows less variation than in other skuas. No hint of breast band, and transition between pale belly and darker vent very diffuse. No white patches at base of primaries of underwing in adults. Juveniles easily confused with juvenile Arctic Skua, but are more slender. Wings narrower and primaries and tail longer. Juvenile Arctic Skua shows white patches at base of primaries on both sides of wings, juvenile Long-tailed only on underwing, and on first few primaries of upper. Barred rump and tail coverts in juveniles. Flight elegant and buoyant.
Sound:Calls sharp and less full-bodied than Arctic Skua, and not so mewing. Short, double-accented "kew-wev" or short "kerk" in agitation. Also a long drawn-out "keeeeaah", resembling both Arctic Skua and Common Gull.
Alarm/flight 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
CCSounds:Recorded by Andrew Spencer,http://www.xeno-canto.org ,CC license