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Common moorhen – Gallinula chloropus

Common moorhen – Gallinula chloropus
(also known as the waterhen and as the swamp chicken is a bird species in the family Rallidae. It is distributed across many parts of the Old World. The common moorhen lives around well-vegetated marshes, ponds, canals and other wetlands. The species is not found in the polar regions or many tropical rainforests. Elsewhere it is likely the most common rail species, except for the Eurasian coot in some regions.

The closely related common gallinule of the New World has been recognized as a separate species by most authorities, starting with the American Ornithologists’ Union and the International Ornithological Committee in 2011.

The moorhen is a distinctive species, with dark plumage apart from the white undertail, yellow legs and a red frontal shield. The young are browner and lack the red shield. The frontal shield of the adult has a rounded top and fairly parallel sides; the tailward margin of the red unfeathered area is a smooth waving line. In the related common gallinule of the Americas, the frontal shield has a fairly straight top and is less wide towards the bill, giving a marked indentation to the back margin of the red area.

It sounds like this
Recording by Tero Linjama from Xeno canto