Froggie in the window

As you may have gathered, from previous posts, when sitting on my computer chair I look out onto a bank, in the garden. Over the years we have seen all sorts of wildlife out of this window. Rabbits and bank voles are there all the time but occasionally we have also had other visitors e.g. pheasant, kestrel, stoat etc.
This morning my eye was caught by movement and eventually I spotted this fine fellow.

He must have been hibernating somewhere. He has tucked himself into the fronds of last years fern so should be insulated from the cold snap forecast for the next few days.