Not for the first time, on cleaning out my grids, where rainwater gets
diverted to a soak-away, I found a live frog. I find this a puzzle as to
how this happens. I assume that while small it slipped between the small
holes in the grid, then grew. If so whatever did it feed on? When I
removed it the poor thing seemed very feeble, so I don't suppose it will
survive. Can anyone explain how frogs get there, or what they live on?