Found this guy snoozing on the bird table this morning. It flew off when I topped the food up and came back again but flew like a young bird still trying out it's wings. It looks to be a finch of some kind, possibly a greenfinch which are apparently quite susceptable to disease. We get the odd one or 2 of them now and then but it seems very early for a fledgling. I'm going to sterilise everything later anyway just in case it was sick.