Legumes can play a significant role in grazing systems by adding nitrogen to the soil and boosting the protein content and palatability of the forage. Birdsfoot Trefoil is a legume that is not as common as many clover species but can play a specialized role in Wisconsin pastures.  It tolerates slightly acidic soils, can be winter hardy, and reseeds enough to provide long-lasting stands in a Northern climate.  While it is a very palatable, persistent forage, it is not very competitive during establishment and should be seeded with a small grain or less competitive grass, such as Kentucky Bluegrass or Timothy as opposed to Orchardgrass or Smooth Bromegrass.  

For more information about varieties and cultivation, see the below Extension document or contact your local Extension Crops Educator.