gwyach gorniog

== Welsh == === Etymology === gwyach (“grebe”) + corniog (“horned”). === Noun === gwyach gorniog f (plural gwyachod corniog) horned grebe, Slavonian grebe (Podiceps auritus) Synonym: gwyach glustiog great crested grebe (Podiceps cristatus) Synonym: gwyach fawr gopog === Mutation === === References ===