資料來源 : Webster's Revised Unabridged Dictionary (1913)
Fork-tailed \Fork"-tailed`\, a. (Zo["o]l.)
Having the outer tail feathers longer than the median ones;
swallow-tailed; -- said of many birds.
{Fork-tailed flycatcher} (Zo["o]l.), a tropical American
flycatcher ({Milvulus tyrannus}).
{Fork-tailed gull} (Zo["o]l.), a gull of the genus {Xema}, of
two species, esp. {X. Sabinii} of the Arctic Ocean.
{Fork-tailed kite} (Zo["o]l.), a graceful American kite
({Elanoides forficatus}); -- called also {swallow-tailed
kite}.