So far, I've been basically just reactive to this issue. He was afraid of our barn dog, so I worked with the two of them a bunch and we played in the arena. Now they're best buds. He wouldn't let me brush his head, so I just incorporated head-brushing into our daily grooming routine and gave him a treat or a "good boy" every time that he lowered his head at all. He'll now lower his head for brushing.
I would like to get him to be less spooky! I've heard of people rubbing plastic bags over their horses to acclimate them to noises/motions all near them. I tried this one time, and he didn't move a muscle until I got up near his head. On his legs, belly, directly behind him, trotting over them...all fine! So this made me really think it is linked to his being head-shy.
Do you guys have any tricks of the trade to help a spooky horse? Maybe something fun? Or something quick and simple that I can add to our daily routine?
Help! It's starting to get annoying...plus we may be going to a show this summer and I want to be safe.