旅鸫（学名：Turdus migratorius）亦称美洲知更鸟（英语：American robin），是鸫属下的一种候鸟，虽然叫做美洲“知更鸟”，但实际上旅鸫与知更鸟并不是一个属的生物，二者之间也没什么亲缘关系。旅鸫广泛分布与北美洲，会从加拿大、阿拉斯加飞往墨西哥中部及附近的太平洋沿海地区过冬。它是美国康涅狄格州、密歇根州和威斯康星州的州鸟。有时被认为是现存种群数量仅次于红翅黑鹂的北美洲陆禽。旅鸫有七个亚种，但只有南下加利福尼亚州的T. m. confinis特征明显。

旅鸫在白天出没，晚上则聚集在一起歇息。其食物包括无脊椎动物和植物果实。夏季回归后不久就会开始产卵，是北美洲最早开始产卵的鸟类之一。它们的巢穴以草叶、树枝和羽毛等组成，并会在外部涂上泥巴、底部加上细草等软垫。黎明时候开始鸣唱。

The American robin (Turdus migratorius) is a migratory songbird of the thrush family. It is named after the European robin because of its reddish-orange breast, though the two species are not closely related, with the European robin belonging to the Old World flycatcher family. The American robin is widely distributed throughout North America, wintering from southern Canada to central Mexico and along the Pacific Coast. It is the state bird of Connecticut, Michigan, and Wisconsin. According to some sources, the American robin ranks behind only the red-winged blackbird (and just ahead of the introduced European starling and the not-always-naturally-occurring house finch) as the most abundant extant land bird in North America. It has seven subspecies, but only T. m. confinis of Baja California Sur is particularly distinctive, with pale gray-brown underparts.