Coot (Common/Eurasian) Fulica atra

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Coot Coots have a white forehead shield . . .
Coot feet . . . and amazing feet.
Also called Common or Eurasian Coot to distinguish from other global (especially American) species. They are related to Moorhens and Water Rails.
They are argumentative birds in the breeding season and will raise their wings like a tent to appear bigger to bluff opponents.
Males will even chase large fish away from their nesting territory.
Coot at Big Ben Big Ben Coot
Coot fight
Males will also fight other coots (and moorhens) and can inflict serious injury with their large clawed feet or their beaks.