One of the easiest ways to attract wildlife to a garden is to include water features, especially those with running water. The sound of running water adds a pleasant dimension to a garden that is hard to duplicate with any other source. We were lucky enough to have running water features in both of our homes when we bought them and I can't imagine living without them. We have spent many happy hours sitting and watching the life around the fountains and ponds in our yards. Even at night the croaking of frogs is a pleasant melody from deep in the Laguna garden.
As it turns out, it is not only the wildlife and people that appreciate the running water, but overzealous pets get in the act too!