I believe its perfectly legal what he did and I do it that waya lot as well. For some reason I always forget to put those dang bread ties in my license holder.

On another note. I don't care what the WCO would say, I wouldn't be sticking a hole through that bucks ear. Taxidermists aren't too fond of that because its something you have to becareful with when mounting so you don't make that tiny hole even bigger.