Fork″–tailed′ (?), a.(Zoöl.) Having the outer tail feathers longer than the median ones; swallow-tailed; — said of many birds.
Fork-tailed flycatcher(Zoöl.), a tropical American flycatcher (Milvulus tyrannus). — Fork-tailed gull(Zoöl.), a gull of the genus Xema, of two species, esp. X. Sabinii of the Arctic Ocean. — Fork-tailed kite(Zoöl.), a graceful American kite (Elanoides forficatus); — called also swallow-tailed kite.