




White
9 weeks old · Male

Orange
9 weeks old · Male

Tillie
9 weeks old · Female
I'm Kenneth R., the breeder behind KAR3 Farms located in Harlingen, TX. We offer athletic, affectionate dogs. Our dogs have been socialized early with a range of experiences and activities. Our pure bred border collies are healthy, beautiful and athletic. They make terrific family pets, running partners, or working animals.
Why did you start breeding?
What makes your program special?
What are the different breed coat types in your program?
What are the different breed coat colors in your program?
Where do your breeding dogs live?
Kenneth has been certified by Good Dog’s screening team for responsible and trusted breeding practices. When you’re ready, reach out to ask about the puppies or anything else on your mind. You’ll get to know each other through messaging, phone, or video and pay securely, all on Good Dog.
After buyers complete the application and screening process, Kenneth partners with them to find the best puppy match.
“We spend time matching a potential buyer to the temperament of the puppy by discussing expectations for energy level, lifestyle and trainability. ”

“The price includes the guarantee, ABCA registration, first round of vaccinations, deworming, and puppy socialization. Your deposit secures one selected puppy on a first come first serve basis.”
Kenneth may provide a written contract or health guarantee when you purchase a puppy. This helps protect both you and your breeder, ensuring that you both have a clear understanding of the terms of your puppy purchase. If Kenneth offers a contract or guarantee, the details will be personalized by them. If you have any questions or want to know more, don't hesitate to reach out to Kenneth directly.
When you pay and communicate on Good Dog, you’re covered by Payment Protection.
You can drive or fly to pick up your puppy from Kenneth.
Meet in Harlingen, TX
Meet at Valley Airport
Meet in Austin, TX
Kenneth has been a member of Good Dog for less than a month
Kenneth was screened for responsible practices and has been a member since 2026.

KAR3 Farms meets or exceeds our community standards in these areas:
Border Collie
About Onyx
Onyx is a beautiful dog with great confirmation and a luxurious coat. He is happy and loving to his family group including animals and people.
Good health testing
Border Collie
About Aspen
Aspen is a highly intelligent, and social dog. She is incredibly athletic and loves to run, swim, and play fetch. She is great with other animals and has proven to be a great mother to her puppies.
Good health testing
KAR3 Farms reports to performing the health tests below on their breeding dogs. Ask your breeder about the tests performed on the parents of your litter. Learn more about health testing for Border Collies.
Hip Dysplasia (rDVM, not registered)
Hip testing reduces the chance of passing down hip dysplasia, which is primarily found in large breed dogs and can cause hip pain and the eventual loss of the function of the hip joint.
Elbow Dysplasia (rDVM, not registered)
Elbow testing reduces the chance of passing down elbow dysplasia, which is primarily found in large breed dogs and can cause arthritis in the elbow joint and front leg lameness.
Eye Examination (rDVM, not registered with OFA)
Eye testing reduces the chance of passing down a wide range of hereditary eye illnesses including retinal dysplasia, lens luxation, and glaucoma, which can cause impared vision or blindness.
Cardiac Evaluation (rDVM, not registered with OFA)
Heart testing reduces the chance of passing down congenital heart disease, which can cause a range of symptoms ranging from trouble exercising to heart failure.
Vet Wellness Exam
A breeder may perform additional tests on their dogs that do not fall into these general categories. These tests may be more uncommon or very specific to a particular breed.
DNA Disease Panel
Genetic testing reduces the chance of passing down a wide variety of hereditary diseases of differing prevalence and severity such as Progressive Retinal Atrophy (an eye disease) and Von Willebrand's Disease (a blood disease).
Health testing is one key piece of responsible breeding and is performed on breeding dogs to prevent the presence of heritable conditions in their puppies.
Health testing is one key piece of responsible breeding and is performed on breeding dogs to prevent the presence of heritable conditions in their puppies.