Piper the Terrier, Chihuahua Mix June 7, 2017/0 Comments/in Dog Blog, Dog of the Day, Photo Gallery /by DogPerDay Meet Piper. He is a three month old Terrier, Chi mix (we think). What he lacks in size he makes up for in personality. Bundle of puppy energy but still likes to cuddle. Submitted by Petaluma Pet Pals.