kestrel
https://gyazo.com/3efadcb17151b0bfcb1bd3497e6f7eb3
source: By Andreas Trepte, www.photo-natur.de, CC 表示-継承 2.5
noun
a small falcon that hovers with rapidly beating wings while searching for prey on the ground.: 地上の獲物を探しながら素早く羽ばたいて上下する小さなハヤブサ
〘鳥〙 チョウゲンボウ〘小型のタカ; ヨーロッパ産〙.
Genus Falco, family Falconidae: several species, in particular the common kestrel (F. tinnunculus) of Eurasia and Africa, and the American kestrel (F. sparverius).
ORIGIN
late Middle English castrel, perhaps from casserelle, dialect variant of Old French crecerelle, perhaps imitative of its call.
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