According to an article in the Daily Telegraph, Moustachioed horse evades barbers, there’s a 10-year old Shire cross in the UK named Alfie that has grown a moustache that rivals some of the most famous in history.
Apparently Alfie is quite proud of his facial hair. He won’t let his grooms near him if he thinks they are planning to trim it!
The article states that facial hair among horses is rare, except amoung Fresians.
A quick search on the Internet shows a pretty good smattering of mustachioed horses. Maybe the rest just have good barbers. Or extra sharp clipper blades.