You can unlock many different skins for your eagle and horse in AC Mirage. This guide on How To Change Eagle & Horse Skin In Assassin’s Creed Mirage walks you through the process of changing the physical appearance of both your trusted mount and your feathered friend.
If you pre-ordered the Digital Deluxe Edition of Assassin’s Creed Mirage, you would have unlocked a unique skin for both the eagle and the horse. Applying this skin to either is the same process as buying regular skins from the game and equipping them to your allies. It’s the same process.
How To Change Eagle & Horse Skin In Assassin’s Creed Mirage
Whether you want to change your eagles appearance or your horses, it’s the same location. Open your map and look for a Stable, these are marked by a horse head icon on the map. You do need to be zoomed in a small ways before you can see it. They aren’t rare. They are commonly found on the outskirts and entrances of towns and villages.
Head there and speak to the NPC. You can then navigate between the mount and eagle screen. Simply purchase or select another skin and it will change the appearance of your horse or eagle.