FFS, herding behaviour is innate controlled pack hunting behaviour - and if not controlled, then it's bloody obvious - it's HUNTING behaviour
Mm, It is, but the end sequence: kill, eat has been bred out though you do get 'rogue' collies that follow through.
Most collies though don't bite and kill, they just herd.
My collie has never had any herding training at all, we got chickens and she loved to round them all up onto the windowsill and would stay absolutely frozen staring making sure they didn't move unless we told her to knock it off.
She never ever hurt them, not even when she was sleeping by the door and the Teresa (the chicken) jumped on her head and climbed over her to get in the house!
Its more about control of movement rather than predatory interest imo, using the eye and stalking etc to move the sheep, or god forbid, child 😱 to where they want them just as a wolf would to separate a deer from the herd and if the sheep doesn't play ball they escalate; maybe blocking their path, maybe gripping and holding or even biting.
That is why it is so dangerous when directed towards children.
Because the natural urge of the child is to run and shriek and shout and the dog thinks it needs to escalate to bring the child under control which terrifies the child even more...
I hate seeing the videos do the rounds on social media and cringe when I hear people talking about them herding 'their' kids or looking after their flock.
It's an accident and euthanasia waiting to happen.