Mareca strepera
Medium sized dabbling duck. Male with grey plumage, mottled breast, black rump and vent lacking white framing. Female brown and easily overlooked and confused with female Mallards. Bill with dark center and evenly broad orange sides. Plumage more greyish than female mallard, with a more slender body and steeper forehead. Diagnostic white wingbars and contrasting white belly in all plumages.
Males display-call a short dry rattling or croaking sound and some high whistling notes. Female quacking similar to Mallard, but drier and shriller.
Wikipedia: map (se also Xeno-canto below)
Birdlife ecology
