Updated On September 23rd, 2025
Pet's info: Dog | Border Collie | Female | spayed
We are renovating and living with family since march. We both have female border collies who have always gotten on very well. Our dog has started rounding the other one up, especially when someone goes outside, even to the point of fighting with her. Any idea why? And how can we stop it. They are both 4 this year
1 Answer
Published on June 8th, 2017
This can be normal behavior for herding breeds as well as with changes in the environment making that behavior stronger. You can try various enrichment activities such as callings, three balls, or increasing your dogs exercise to see if that helps. However given their breed and the current environment it will be difficult to stop the behavior all together. If the aggression escalates I recommend you keep them separated. You could also try working with a trainer one on one with your dog to see if they can identify specific triggers causing this behavior.
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