Build it, and they will come
At least according to the Home Depot pond book in reference to local wildlife. And though I'd really like a couple of turtles and some crawdads in our pond, I was pretty excited when I saw the first frog.
This big guy can be found sitting in our iris almost every day. I have twice seen a second smaller frog, but it doesn't seem to have a regular hang-out.
I am keeping my fingers crossed for tadpoles!