One thing I really like about our yard is that it is so animal friendly. We have at least 4 different bird feeders which draw in a large number of birds and squirrels. In addition, our neighbor's cats are also frequent visitors (OK, sometimes we sneak food to them). This, coupled with the tearing out of the lawn and replacing it with shrubs gives it sort of a wild feel. We also like to keep a small footprint as far as where we can sit out there.
It's just nice when we live in such stressful times to go out and see all the little critters (and the cats are too fat and happy to bother the birds or the squirrels).