Once you set Species to Dog, the primary breed value defaults to Unknown breed:
If Species is set to any other option besides Dog, the primary breed must still be identified:
This change only pertains to dogs. All other species still require a primary breed.
Dogs without a breed are exported to Adopt-a-Pet.com and Petfinder using the breed identifier: Mixed breed. In all RescueGroups.org services, such as our Website and Toolkit, these animals will be listed as Unknown breed.
IMPORTANT
If you do not select a primary breed but do select a secondary breed, the secondary breed you select will populate the primary breed field on the adoption sites. If you import an animal to us with a secondary breed without a primary breed, our system will use the secondary breed as the primary since that is how we will export it. The secondary breed is optional. You do not have to select a breed for that field.