Welcome to BYC! I have Mini Dachshunds with high prey drive. Mine can look at the chicks and ducklings though fencing in the brooder or outside with their mamas but they cannot be close. I learned this the hard way many years ago. By accident. Once the peeping is over they are fine. So the leave command and watch them closely. Your pics are precious ❤
and Welcome to Backyard Chickens.
