murre

This term refers specifically to a type of alcid seabird. In ornithological contexts, it is often used interchangeably with "guillemot," though "murre" is more prevalent in North American English while "guillemot" is more common in British English.

Because these birds are highly social and nest in dense aggregations, the word is frequently paired with collective nouns such as "colony" or "rookery" to describe their breeding behavior on precipitous cliff faces.