Mallard (Anas platyrhynchos)
Red Knot (Calidris canutus)
In all plumages distinguished by blue or purple speculum boldly framed in white. Male: metallic green head, brown breast, grey body and yellow bill. Female: brownish with dark speckles. Bill with variable, uneven orange markings on sides. Differs from Gadwall and Pintail by being noticeably more heavily built.
Sound:Female: A distinct coarse, laughing quacking; "haaa ha ha ha ha ha", with first note accented and then descending in pitch. Male: a more silent, very nasal "rriib". Display call a high-pitched short whistle.
Female:
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 Stein Ø. Nilsen,http://www.xeno-canto.org ,CC license
Large, stocky Calidris. Easily identified when direct size-comparison with congeners possible. Elongated body shape and short legs. Bill robust, short and straight. Summer plumage: Upperparts speckled in brown and grey, underparts warm rufous brown, like Curlew Sandpiper. Legs dark. Winter- and juvenile plumage: Pale grey upperparts (scaly pattern in juveniles), and white belly. Legs greenish in both juveniles and winter-plumaged adults. Note pale grey rump and uniformly grey tail in flight. Wing-bars less prominent than in Sanderling.
Sound:Most commonly heard migratory call, a short "kut" or "knot". Sometimes given in stuttering series. Song an undulating, nasal mewing "poooor-mee", or "po-hor-mee".
Contact call, song:
Distribution:
Wikipedia: map (se also Xeno-canto below)
Ecology:Birdlife ecology
Links:
Observation.org Latest observations
Image search Flickr NB! May give other species
CCCC-sounds:Stein Ø. Nilsen, XC317787. Accessible at www.xeno-canto.org/317787.