What may have left this?

[daver]

Urban garden Shrewsbury:

[vole-woman]

Hedgehog? It's on the short side, but looks about the right colour and shape. Is it full of beetle cases when you break it open?

[daver]

Maybe one or two cases. It's difficult to tell - I've been away and it's gone a bit moist.

It seems to have some fibrous matter in as well. We do get hoggies in the area but sightings are pretty rare.

[Dogghound]

I agree hedgehog, ls full of elytra. The fibre could be from nestling birds, carrion or small mammals which hedgehogs will consume if given the opportunity.