To the OP, you do know a BB....IS a buck fawn...right?
Looking at the photo, I'm not so sure the OP isn't "kinda" right, though. That doesn't look like a buck fawn to me. His head's too long and his body's too long.
I've seen bucks lose one of thei antlers in velvet or later. I'm sure there's a possibility this one had spikes (or whatever a spindly 1.5yo would carry) and lost them @ the pedicle.