noun
storm petrel
Refers to any bird of the family Hydrobatidae. Typically written in katakana as ウミツバメ.
ウミツバメは海の上を飛び回る小さな鳥です。
The storm petrel is a small bird that flies over the ocean.
Compound of 海 (umi, “sea”) and 燕 (tsubame, “swallow”), referring to the bird's swallow-like appearance and marine habitat. The exact historical derivation is uncertain.