Are Red Heelers More Aggressive Than Blue Heelers?

No, red heelers are not more aggressive than blue heelers because they’re all just Australian cattle dogs. The only difference between the red heeler and the blue heeler is the color of their coat.

Red heelers are not typically aggressive, but due to the breed’s origin as working dogs that had to control cattle, they have an instinct to nip and bite. They need training and socialization to overcome this, and also need supervision when in public areas or playing with children.