noun
Japanese murrelet; crested murrelet
A small seabird (Synthliboramphus wumizusume) found in Japanese waters. The name is usually written in katakana.
カンムリウミスズメは日本の固有種です。
The Japanese murrelet is a species endemic to Japan.
伊豆諸島でカンムリウミスズメの繁殖が確認された。
Breeding of the Japanese murrelet was confirmed on the Izu Islands.
The name combines 冠 (かんむり, 'crest') + 海雀 (うみすずめ, 'sea sparrow', an old name for auks or murrelets). The exact derivation is uncertain, but it describes the bird's crested appearance.