I grew up in a farming community & while I never saw cows scratch their backs with a broom, it does not surprise me that they would learn, if left with one and living long enough (they don't live long).

There were always stories of cows trying to hide their calves from farmers wanting to take them away, or taking opportunities to quietly escape.

"Perhaps the real absurdity lies not in imagining a tool-using cow, but in assuming such a thing could never exist.”"

https://www.theguardian.com/science/2026/jan/19/back-scratching-cow-veronika-bovine-intelligence