The highest-priority bird in remnant forests is the Cerulean Warbler. Because of agriculture, this is now the largest and most important area of grassland in the Northeast, providing habitat for such species as Henslow’s Sparrow and Bobolink. Agricultural abandonment may temporarily favour shrub-nesting species, such as Golden-winged Warbler and American Woodcock, but increasingly, agricultural land is being lost to urbanization.
This physiographic area is also extremely important to stopover migrants, attracting some of the largest concentrations of migrant passerines, hawks, shorebirds, and waterbirds in eastern North America. Much of these concentrations occur along threatened lakeshore habitats.
Habitat Joint Venture:
- Strategy for BCR 13ON: Lower Great Lakes/St. Lawrence Plain PDF
- Strategy for BCR 13QC: Lower Great Lakes/St. Lawrence Plain PDF