Late season hay harvest provides habitat for marshland birds

Abstract

Haying of alkaline marsh and non-native annual grasses on the Ash Creek Wildlife Area has been a standard practice to enhance bird habitat since 1986. Harvest begins each year after Aug. 15 to minimize disturbance to nests and broods of greater sandhill cranes (Grus canadensis tabida) and other marsh-nesting birds. Field studies in 1996 revealed that the abundance and diversity of birds on hayed plots was equal to or greater than the abundance and diversity of birds on nonhayed plots. Greater sandhill cranes were also more abundant and spent more time foraging and less time being vigilant on hayed plots relative to plots that had not been hayed. Harvest of wild hay after nesting and brood-rearing can therefore be an important management tool to create a mosaic of habitats required by many species of marshland birds.