Creating a habitat for wildlife?

Maybe it is not nice I think like this ... but I am glad the 'wildlife' coming into my garden is never larger than a Hedgehog (and Hedgehogs do not eat plants, they snack on slugs, worms and insects). Every time I read about Deer in someone's garden I feel so glad there are no Deer in my neighbourhood! There are Roe-deer in the region, but they don't come into town.