Got another one for you.
The Wombles (also somewhat mouse-like in appearance as it happens) are defined by wikipedia as 'pointy-nosed, furry creatures that live in burrows, where they aim to help the environment by collecting and recycling rubbish in creative ways.'
Obviously wombles live in many different countries, but the documentary, on TV back in the '70s, focused on those who live on Wimbledon Common.
This is a particularly fine episode. (Orinoco is my favourite.)