We've been trying to catch our resident hedgehog, as we think s/he's limping a bit.
Instead, we've caught a small stoat ... the longish tail has a black tip. Probably a young female, as it is quite small - those wires are spaced about an inch apart. S/he was released a few moments after these images were taken, and left at high speed !

The European stoat (Mustela erminea) is also known as the Eurasian ermine ...
en.wikipedia.org/wiki/Stoat