High priority
grassland birds such as Greater Prairie-Chicken, Henslow’s
Sparrow, Dickcissel, and Grasshopper Sparrow typically require
large expanses of open grasslands with a minimum amount of woody
vegetation before they are attracted to a given site and before
reproductive success is adequate to sustain local populations.
Grassland birds were probably most abundant historically
in the prairie and shrub-prairie dominated landscapes of the Springfield
Plateau in the western Ozarks, and in areas with large expanses
of barrens (prairies with scattered trees) in the central and southern
portion of the Interior Low Plateaus.
Vast expanses of those grassland landscapes have
been converted to cropland or non-native grass pastures. Fire suppression
has allowed other areas to become overgrown with woody vegetation.
Nevertheless, opportunities exist to restore and enhance grassland
habitat across relatively large landscapes. |