Hairy vetch (Vicia villosa) is a legume plant commonly used as a cover crop and for forage. While rabbits can technically consume hairy vetch, it is not recommended as a primary food source for them.

Hairy vetch contains high levels of fiber and can be tough and difficult for rabbits to digest. Additionally, it may have a laxative effect on rabbits if consumed in large quantities. Rabbits have sensitive digestive systems, and their diet should primarily consist of hay, fresh vegetables, and a controlled amount of pellets.

If you have hairy vetch growing in your rabbit's environment, it's best to prevent them from accessing it to avoid any potential digestive issues. Instead, provide them with a balanced diet that includes appropriate hay, fresh vegetables, and a limited amount of rabbit pellets to ensure their nutritional needs are met.