Lost Chihuahua: Big Mac, 6lbs, Distinct Marks!

Answers to big Mac or Mackie. He is a reddish brown Chihuahua but his fur can appear very light. He blends well with foliage. Six years old and approximately 6 lbs with a white butterfly pattern on his chest and a green and brown army fatigue collar with a bone tag. He has a distinctive sore on each ear from a squirrel fight and needs medication. He is skittish and cowards to loud noises. He is overall friendly, but will bite if he feels cornered. He has a very sensitive stomach and is on a strict diet.