also: りょちょう
noun
migrating bird (passing through)
Ornithological term for a bird that stops briefly during migration but does not breed or winter in the area. Contrasts with 夏鳥 (summer visitor) and 冬鳥 (winter visitor).
この干潟には春と秋に多くの旅鳥が立ち寄る。
Many migrating birds stop over at this tidal flat in spring and autumn.
旅鳥は繁殖地と越冬地の間を移動する途中で見られる
Migrating birds are seen while traveling between their breeding and wintering grounds.
Compound of 旅 (travel) and 鳥 (bird). The reading たびどり is the native Japanese reading, while りょちょう is the Sino-Japanese reading.