Migratory Birds of the Great Lakes University of Wisconsin Sea Grant Institute
 about habitat birds + science 20 birds
aerialist raptors
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Least Bittern — Nest and Eggs

The Least Bittern’s nest is a platform made of marsh vegetation, covered with a canopy made by pulling tall marsh plants over and crimping them in place. Nests are placed in dense, tall stands of vegetation, and adults approach the nest on foot rather than by flying. Breeding bitterns usually lay four or five eggs, pale blue or green in color. Both parents incubate the eggs for 17-20 days and chicks fledge about 25 days after hatching.