migratory restlessness
(botany) Any of the genus Conophytum of South African and Namibian aizoaceous succulent plants.
Obsolete form of Burgundian.
(ornithology, zoology) Anxious behaviour in migratory animals, especially in birds, experienced at the beginning of the normal migration period; zugunruhe.
(anatomy) Relating to the neck and the cranium
毎年秋になると、スズメは渡りの不安行動を示し、鳥舎を行ったり来たりして不安そうに空を見つめます。
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