Cat that fell update
One of the volunteers walked around the block again to see if she could find the owner of the cat that fell. It appears that now it might have come from a flat on the second floor. The volunteer managed to track a woman down who said she lost her cat two weeks ago.
I have sent her the photo of the cat to see if she recognises it. The cat wasn't doing so well yesterday, but is eating and drinking today. I hope it recovers, and we manage to find it a home somewhere.