Motivating apple head chihuahuas vs. deer head chihuahuas: how are they different? | Chihuahua puppies, Cute chihuahua, Chihuahua dogs

How is a blue chihuahua puppy different from other chihuahua puppies? Why are blue chihuahuas rare?

Pug

Aug 12, 2020 - Applehead and Deer head Chihuahuas. What makes an Applehead Chihuahua different from a Deer head Chihuahua?