The bird started from the tree.
鳥が木から突然飛び立った
The birds travel south in winter.
その鳥は冬には南方へ渡る
The birds were nowhere to be seen all morning.
午前中鳥はどこにも見あたらなかった
the correspondence of a bird's wing to the human arm
鳥の翼と人間の腕との類似
The disease can be transferred from birds to humans.
その病気は鳥から人に感染する
The dog was carrying a bird in its mouth.
犬は口に鳥をくわえていた
the feathered race
鳥類
The fins of a fish correspond to the wings of a bird.
魚のひれは鳥の翼に相当する
The neck of these birds is bare of feathers.
これらの鳥の首には毛がない
the Swan of Avon
エイボンの白鳥(◇Shakespeare のこと)