I have had my bird for almost a year now, but one thing I've noticed is slight tail bobbing. Slight, I suppose. I don't know what qualifies as normal and what is sick. But the thing is it's been going on for a very long time. We had him checked out by the vet and the vet said he is in good health. Should I still worry? The vet is 40 minutes away and the next closest vet is no doubt even further, as the 40-minutes-away vet is the closest.