This mustang, one of the herd at Silent Knight Farms, is having fun stretching his legs. I especially enjoy the fact that in this shot you get a good look at the distinctive brand that is often hidden under his mane. (Be sure to click on the photo for a closer look at the brand.)
BLM Mustangs are freeze-branded when they are captured. If you know how to read the markings, the brand identifies details such as the animal's age, registration number, and the area where it was gathered. I definitely don't know how to decipher the brands, but I think Walter is from a Nevada herd.