Red-legged Partridge

Red-legged Partridge

Observation - Red-legged Partridge - UK and Ireland. Description: This looks like a Red-legged Partridge to me, speckled breast/ barred flanks, but what's it doing in my garden in North London?!... (it isn't a very big garden either.) It looks like it has something tied to/caught on its leg - so maybe the question is

This looks like a Red-legged Partridge to me, speckled breast/ barred flanks, but what's it doing in my garden in North London?!... (it isn't a very big garden either.)

It looks like it has something tied to/caught on its leg - so maybe the question is where it has come from?