In reply to keith-ratcliffe:
This is actually for real! I think one of the cows is overly protective.
We were were running around the hills (as per recommendations, really nice terrain) and as I crossed the very same bridge pictured in the BBC article, I was charged by a cow. Luckily I had some pace going, and waltzed over a nearby gate. I warned some walkers who were about to pass about the aggressive behaviour and they passed without issue.
However, a few minutes later (I had gone back over the bridge to collect my partner who doesn't love docile cows, let alone a cow chasing me), the blooming thing ran at an older walker, who was either pushed or fell into the ground.
In hindsight, had I noticed the calves, I would have walked by on the first instance, as the cows were grazing between two bushy areas and the bridge, with no easy route to meander off. Note that I was not between the cow and calf, and at least a couple meters away from either.
I shot an email to the Pentland Hills convener mentioned in the article. Hopefully they can graze the cows in a less well trodden/hemmed in area.
Post edited at 22:43