We usually produce one litter between the spring and summer months, and planning is based on the interest of forever homes. At 303, we build a reservation list to ensure a need and desire for our puppies before bringing them into the world.

Yes. Every 303 puppy is registered through the American Kennel Club. Puppies are recorded a few days after birth and go home with their AKC application packet.

All of our Aussies are Standards. Males average 55–65 pounds and approximately 20–23 inches at the shoulder. Females tend to weigh 40–55 pounds and average 18–22 inches.

Yes. All of our dogs are tested through Paw Print Genetics. We also use UC Davis for Merle SINE length testing and coat-color genetics.

No. Every dog stays at 303 to live out their golden years. Our commitment lasts for life.

No. The legacy program policy states that Mason and Odin produce only 303 puppies.

Start with the contact page. An honest conversation is the beginning of the application process.

We prefer puppy picks in person so the bond can lead the choice. If that is not possible, a video conversation is a strong second option for watching the litter interact with people and one another.

No. We prefer each puppy’s new family to accompany them home. For clients traveling from out of state, we can arrange to meet at Denver International Airport for a personal handoff.

Bring a collapsible kennel or travel crate with room to turn around, a training pad, bed or blanket, a small toy, water, dry food, a travel bowl, and a secure collar or harness with leash.

At 303, we use Nutro Natural Choice Adult and Puppy Food and supplement with high-quality fish oil plus probiotics and prebiotics. We do not advocate a grain-free diet. Please research grain-free and raw diets carefully with your veterinarian.

303 recommends finding a fair, honest, and consistent veterinarian: compare prices, read reviews, speak with the staff, and keep vaccinations, rabies, and deworming current—especially during the first year.

A happy puppy is a tired puppy, but mental stimulation matters as much as movement. Avoid extensive physical exercise while bones and joints are still developing, generally until 18–24 months. Stay active and watch for fatigue.

Consistency, routine, and praise. Take a puppy outside after eating, drinking, and waking from sleep. Those first few days of predictable breaks help everyone acclimate.

Keep your new best friend close for the first few nights. A safe space creates security—some puppies prefer a den-like crate, some a blanket, and others a cool hard surface. Pay attention and learn what helps them settle.