At close ranges your pattern is very close, and I've heard of more guys missing at close range for that reason. If you found absolutely no blood or feathers. Plus why he flew off, I'd guess he's fine. But now 1 skiddish bird. If you had a couple of buddies you went into a bar room with, and you got your butt nearly whipped. Would you go back there with your buddies the next day! He's just all the wiser now.