Longmire places a satchel on the horse's neck and reads a poem, after which the horse raises its head and shrugs the satchel off. However, in the pullout shot fading into the credits, the satchel is back on the horse's neck and falls off again.
A Eurasian Eagle Owl is used as a native species in Wyoming. This Owl is only found in the deep forests of Europe, and Asia.
Longmire asks Alice why Ray didn't go into witness protection to escape the mob. Alice replies "Ray never trusted the FBI." The U.S. Marshals Service handles witness protection, not the FBI.