Topography (Anatomy and explanation)
Long-tailed Jaeger (Stercorarius longicaudus)
Description of main identification features in chosen species' appearance. Some bird anatomy terms are used, and it may be useful to study the photos above to learn them. All text written by Audun Eriksen.
Sound:Description of song and calls, and what to listen for in the audio files, and when learning the species. Some music terminology is used. Timbre: tone colour or tone quality. Ritardando: Tempo slowing down gradually. Register break: abrupt change in pitch due to sudden jump in resonating length of throat (typically in long-necked birds).
Distribution: Ecology:Link to webpage describing ecology and population of the species.
Links:
A collection of hyperlinks for each species can be found here. You can easily see latest observations, additional photos/sounds and watch videos of the species without having to search for the species name.
CCCreative Commons licenced photos and sounds are listed here with links. For media not listed, usage is permitted by direct appointment with copyright owner. See watermark on photos.
Breeding 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