My old Tervuren, Ranger, would have done this. He had an insatiable drive to herd like objects, be they nephews, livestock, etc. At the dog park I used to take him to, there were a group of Great Dane owners that met with their dogs every Thursday evening. They hated Ranger because he considered them “like objects,” and instead of the Danes being able to run free as a pack as intended, they were penned in a corner of the park like a herd.
We had two Border Collies on the farm when I was growing up. They were my great uncle’s dogs, he named the first Lassie after the TV dog and the other was Rennie because his colors reminded everyone of Rin Tin Tin. Hey, I never said my great uncle had a vivid imagination.
Anyhoo, those two dogs were great herders.
Horses? No problem.
Cattle? In the bag. This was especially helpful.
Chickens, where ya want’em Pa!
On a slow day they would even herd the multitude of cats on the farm!
Once we were working in the plant bed. Around noon my great uncle took his coat off and hung it on a tree limb. End of the day we were back at the house. About dark my great uncle started wondering where the dogs were.
My dad grabbed a flashlight and went to the fields we had been near looking for them.
He finally found them at the plant bed laying under my great uncle’s coat that he had forgotten.
Faithful dogs those two.