Can anyone tell me how I can get frogs to take up residence in my tiny wildlife pond? It's 2 years old and quite healthy now - made with a natural shape from a liner and with stones round the edge and a little pebble area and a log for creatures to get in and out and some plants in there too. But although I saw one tiny frog in the pond last year, that's the only time - and there's never been any frog spawn. My garden is fairly wildlife friendly (leaves left under hedges, gravel, lots of plant cover etc). Any suggestions very welcome.