Big Yellow Dog Pet Services (BYDPets), locally owned and operated in Downtown Frederick. We provide Pet Sitting, Dog Walking, Overnight Pet Sitting, Vacation Pet Sitting. Hotel Pet Sitting, and Pet Concierge Service in Frederick, MD and specialize in senior dogs and pets with special needs. Big Yellow Dog Pet Services fills an important need in the lives of your pets by keeping them happy and comfortable while you are busy at work, enjoying a night out, or away on vacation. Whether for a day or