passenger pigeon
noun
1- an extinct long-tailed North American pigeon, noted for its long migrations in huge flocks. It was relentlessly hunted, the last individual dying in captivity in 1914旅鸽。
1.1
- Ectopistes migratorius, family Columbidae.拉丁名Ectopistes migratorius,鸠鸽科。