In every flock of sheep, there is one guard sheep, a sheep who takes responsibility for alerting the others to danger. Sheep are prey animals, they are defenceless against predators – coyotes, wolves, stray dogs.

There is always one who keeps an eye on the surrounding pastures and woods while the others eat with their heads down.

Rosemary is our guard sheep and she always keeps her head up to keep an eye on Red while the others graze.

The thing is, the sheep think the border collies are coyotes or wolves,  come to kill and devour them. That’s why they do what border collies tell them to do (unless the border collie is Fate.) Rosemary will sound the alarm if  Red starts to move.