Mark, I love little frog ponds. I wanted to build one when I lived upstate New York, but there was no water feature nearby and I didn't have the muscles to dig enough of a hole.
I ended up digging raised beds for veggies instead and never saw a frog anywhere, just lots of slugs. Do frogs eat slugs?
Anyway, have you had any lady frogs and tadpoles yet? We captured frog eggs when we were in second grade in Malaysia and raised them till they could hop away. They provided a lot of entertainment to us kids. We didn't know TV then.
Please continue writing about your frog pond.