



I'm Nancy M., the breeder behind ThornCreek Bernese & Eendenkooi Kooikers located in Pennsylvania. We show our dogs in both conformation and performance and health test/evaluate our breeding dogs for hips, elbows, eyes, vWD, cardiac, and DM. We only have one or two litters a year which we carefully socialize.

What makes your program special?

Nancy has been certified by Good Dog's screening team for responsible and trusted breeding practices. When you're ready to reach out, feel free to ask any questions about the breed, their program, or specific puppies.
Together, you’ll choose the puppy that’s right for you, stay in touch with regular updates, and plan how to bring your new puppy home.

Nancy 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 Nancy 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 Nancy directly.
You can drive or fly to pick up your puppy from Nancy.
Meet in Pennsylvania
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Club memberships
Nancy is a member of Nederlandse Kooikerhondje Club of the USA and Bernese Mountain Dog Club of America, Inc..
Nancy has been a member of Good Dog for over 5 years
Nancy was screened for responsible practices and has been a member since 2020.
Nancy’s links

ThornCreek Bernese & Eendenkooi Kooikers meets or exceeds our community standards in these areas:

Bernese Mountain Dog

Nederlandse Kooikerhondje
Excellent level
ThornCreek Bernese & Eendenkooi Kooikers 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 Bernese Mountain Dogs.
Hip Dysplasia
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 Finals (OFA, BVA, SV, FCI), Elbow Dysplasia (Preliminary)
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 Certification (CAER, 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 (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.
Histiocytic Sarcoma Pre-Test DNA (from Antagene)
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 Profile, Degenerative Myelopathy (DM; SOD1B), Bernese Mountain Dog Type, Degenerative Myelopathy (DM; SOD1A), von Willebrand Disease III (vWD III)
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).