Assertion: great auk | /r/UsedFor | refer to prominent white patch
Facets:
value: on the head
type: LOCATION
Source sentences:
text: The Great Auk, in Welsh pen gwyn, 'white head' (referring to the prominent white patch on the head which distinguishes it from other auks), was the original bird to which the name "penguin" applied; this use was first recorded in 1536 in respect of islands off Newfoundland.