River Warbler (Locustella fluviatilis)
Great Egret (Ardea alba)
A long-tailed and relatively long-winged Locustella, with olive-brown plumage and pale belly. Conspicuously broad, rounded tail, and substantial vent. Under tail coverts brown with with prominent pale fringes, and almost reaches tail tip. Faintly streaked throat and breast. Rump and tail warmer brown than back. Faint and short supercilium and pale eye-ring. First long primary with pale outer web, and a slight curve. Song-posts often more exposed than Grasshopper Warbler.
Sound:Song an insectlike, buzzing like Grasshopper and Savi's Warbler, but easily distinguished from those by it's distinct steam locomotive-like rhythm. About 8 accents per second. Perhaps easier to confuse with certain species of ground crickets or cicadas than it's congeners. Contact call a sharp "tsikk-tsikk", similar to Savi's Warbler.
Song:
Distribution:
Xeno-canto: map
Ecology:Birdlife ecology
Links:
Observation.org Latest observations
Image search Flickr NB! May give other species
CCSlender and elegant bird, about the same size as Grey Heron. Bill dark in breeding birds, otherwise yellow. Legs and feet dark, but tibia often with red tinge in breeding season. Long, S-shaped neck with sharp angle/bend. Erect posture, and less skulking, horizontal hunting behaviour than Little Egret. Almost twice the size of Little Egret, and wing-beats are considerably slower. Wings give the impression of being attached more upfront than in Little E. Feets protrude well beyond tail in flight.
Sound:Silent outside breeding ground. In colonies various harsh calls like a dry, and mechanical "kerrrrrrr", and a very nasal "geet" or "ga-geet ga-geet" are heard.
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
CC