What about this seed product (haven't copied the link)
"Red & White EcoClover Lawn
A tough, well proven mixture which provides a dense and resilient turf and added protein of red and white clovers . Ideal for the country cottage look Great for poultry rabbits and other small animals Sowing early spring through to late autumn Ivisons Cottage Lawn Mix Very good ground cover , Robust pasture even in wet weather. Great for Country Cottage Lawns Self Feeding High Nitrogen Mix consists of: A mix of Dwarf Amenity Ryegrass and Strong Creeping Red fescue and 5% mixed red and white clovers. Sowing Rates New Lawn Sowing Rates 50g Per m2 Coverage Overseeding Sowing Rate 35g Per m2 Sowing Spring - Late Autumn Before Frost March-October as a Guide Only."
You may not have room or you might already have one, but while you're at it, consider a small pond?