Jerry R. Longcore
Paul U. Wilson
2011
In June 2001, we located an active <i>Ixobrychus exilis</i> (Least Bittern) nest in Bass Harbor marsh on Mount Desert Island, Hancock County, ME. Only 2 other descriptions of Least Bittern nests exist for Maine, although based on other breeding evidence, the species is known to breed elsewhere in the state. We found the nest in a 0.7-ha <i>Typha</i> sp. (cattail)-dominated area within a larger (3.5 ha) freshwater wetland located ≈120 m from an 88-ha estuary. During the breeding season, most Least Bitterns in Maine and elsewhere are found in wetlands of greater size, usually >10 ha.
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Humboldt Field Research Institute
Least Bittern nesting record in Maine
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