This year we had to reline our pond as it had sprung a leak. We were careful to remove all the wildlife we found and keep them safely in buckets etc... until the pond could be refilled. The weather was still cold and there was no sign of the frog. You can imagine our surprise when in the mud at the bottom of the pond there were about 10 frogs, they had been hibernating and we had woken them up! OOPS!
But once the new liner was in and the water had settled they were all put back carefully and all was well again.
So if you are off to look for frogs Rory we hope you don't get too muddy!
Erica & Ursula