I documented successful breeding by a pair of Sandhill Cranes (Grus canadensis) in a wetland in Kennebec County, Maine in 2000 and 2001. In 2000 I observed two adults with a chick on 5 and 14 July and 5 August. In 2001 I found the pair incubating a nest with two eggs on 18 May and observed them with one chick on 3 and 22 July. The wetland is a large sedge- and sphagnum-dominated lakeside fen and cattail (Typha latifolia) marsh that supports one of the most diverse wetland bird communities in the state. The nest was surrounded by cattails and was constructed of year-old cattail leaves and stems. These first records of breeding Sandhill Cranes in Maine and New England are likely the result of recent increases and eastward expansion of a crane population centered in the midwestern United States and Ontario. Historical literature suggests that this species was formerly a common migrant north to New England and may have nested here as well.