Anyway I do know quite a bit about keeping animals having grown up on a farm with sheep, cattle and a pony.
Right now I live in the suburbs of Philadelphia. There is a house down the street that has two ponies in the yard and I'm really concerned about the lack of space there. Each of them is fenced into a small enclosure, about 15 ft by 8ft, 6 ft of which is covered. I have never seen them outside this space. I can't get close enough to tell if they have enough food/water etc but to me a lack of space is bad enough.
My question is...is this enough space? What would you do in this situation, express your concerns to the owner?