I agree that bushdogs do make and regularly follow paths around their enclosures - but I have always thought of it as a pack behaviour, with each dog following the one in front of it to maintain contact between small animals in a complex forest environment - possibly involving patrolling territory as well. In my experience the dogs rarely show the stereotyped pacing behaviour that can be seen in some big cats and mustelids.
I couldn't agree with this more - Personally, I've seen what I'd consider stereotypic pacing from cats and mustelids mostly (The worst pacing I've ever seen from a species was Tayra). As you've noted, I've also always seen it as more territorial patrolling behaviour, than pacing.
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