I do intend on keeping rabbits, but mostly for their meat, though any excess babies could go as pets too. I haven't got a vast amount of space and I prefer birds so that's what I'm learning towards more.
The problem I have with the horse grazing is I'm not on site and there's no fencing. When I live on the farm we'll have the sheep, cows etc and I won't want to be offering grazing for other people's animals. And at the moment when I'm not there I simply don't have the funds to put up enough satisfactory fencing. Also, the pasture that's there at the moment isn't very good.
Basically, it's all small revenue streams I can operate from my current and tiny plot - that's NOT the 40 acres but just 45sqm! :D