This might not help anyone since I scared it away but wanted to put the info out there anyway. Today a all grey pigeon was hanging out in my yard. My b/f was amazed that it walked right past him, so I went out to see if it was injured. It didn't seem to be, just tired maybe? I noticed a green tag on it's leg. I tried to get closer to see it and ended up scaring it away. I know I'm not saying much here since I don't have it, I don't think it's injured, and I didn't get the numbers, but I thought if me writing this could help anyone I would. Message me if you think it might be your lost birdie and I'll give you the street. It didn't go far. I think it's about 3 houses up now.