Every dog carries the same hunting sequence in the brain. It runs in a fixed order, every time.
Orient. Eye. Stalk. Chase. Grab. Kill.
They spot it. They lock on. They creep in low. They run it down. They take hold.
Herding breeds were bred to stop before the kill. That last piece was taken out, and the 5 steps leading up to it only got stronger. That is why they stare. That is why they circle. That is why they nip at heels.
The sequence has to run start to finish or it does not close. When it does not close, it resets and fires again at the next thing that moves.
That is the instinct. It is not a mood and it is not bad behavior. It is a job their brain is trying to finish.
A toy cannot give them that. A job can. Bovari lets them run all 5, in order, and take hold at the end.
⭐⭐⭐⭐⭐ "Duke and Daisy are totally obsessed with this thing. At the beginning, they kept waiting for me to toss it to them, but once they figured out the game, they just race around the lawn pushing it everywhere all by themselves." Megan R., GSP owner