So I have just begun raising pigeons and it has been a year, everything was going fine, but yesterday I had a pigeon suddenly die, for a while it was staggering and looked weak so I took it in but I noticed little bugs on it, they looked like flies, and I didn't know what to do or what they were, but when I went to check on it again it was dead, it was a bit sad because I had hand raided it when it was a couple of weeks old. Does anybody know what to do if this happens again, and what those flies are?