moreanimalia:

Meet Dragon, a white-faced fawn who needed to be bottle-fed after being rejected by its mother at a northern Kent County farm. 

His birth mother, “Bunny” is also a piebald whitetail deer. Piebald means they have a genetic defect causing the animal to have large areas of white in its coat. The defect reportedly occurs in less than 1 percent of the whitetail deer population. Dragon was rejected by his mother after birth, likely by natural instinct because he looks different than other fawns.

[Source]