I would not consider a 4 year old Yorkie to be a senior. I would say around the 7-8 age range. My 9 year old is just starting to really be in that senior category if you ask me. He thinks he is 7 though so don't tell him he is actually 9.
I would only consider really big dogs to be seniors at a younger age and even then I would say around 6 is considered senior for them.
__________________ It's raining Yorkies here! LOL Teek ,Rowan , Raksha (Grand Puppy) , Raelyn |