High Quality Content by WIKIPEDIA articles! The Wood Thrush, Hylocichla mustelina, is a North American passerine bird. It is closely related to other thrushes such as the American Robin and is widely distributed across North America, wintering in Central America and southern Mexico. The Wood Thrush is the official bird of the District of Columbia. The Wood Thrush is a medium-sized thrush, with brown upper parts with mottled brown and white underparts. The male and female are similar in appearance. The male has one of the most beautiful songs of birds in North America.