Posted: 14/06/2016 at 19:41
If your pond is level with the surrounding ground, plants which drape over the edges give access in and out for frogs, newts, etc. Frogs will access an above ground pond quite easily.
If you have large plants in the pond, the smaller birds can settle and drink, search for insects, etc. without any problem.
Placing logs in the pond can only help but if the pond and surrounding area is planted with some thought, it isn't particularly necessary other than a place for birds to perch and drink.
If you have Hedgehogs in your garden, it may be a good idea to provide an easy exit should one topple in...IME, they tend to know to avoid the water but there will always be one