Bird - I think. Are you rural or urban? might be pheasant or even pigeon
Cin J
Thanks. I’m in Kent, just outside of london, uk.
Never seen a pheasant. I do see lots of pigeons though / lots. But I’ve always seen pigeon poo as being quite different. I also see lots of magpies
I can't help other than suggest a trailcam. They're pretty good, easy to use and inexpensive (relatively).