Eurasian Moorhen Eurasian Moorhens are dark-colored birds with a red and yellow beak and green legs. Upon closer inspection, they have a dark brown back and wings, along with a bluish-black belly and white stripes on their flanks. Related Articles: American MinkMustelids In The British IslesEurasian Otter Species Guide: Appearance, Diet, Habitat, Behavior, And Conservation StatusGlossary: Corncrake