I never thought we would have a farm use for my parents' 8lb Cockapoo/Dachshund mutt. I thought she would want to kill my chickens, but several encounters with my Mama hen disabused her of the notion that chickens were play things. However, my last batch of chicks was fairly adventurous after Mama weaned them any they would slip through my electric fencing and go exploring. One day my mom told her to "get those bad chickens" and she chased them back through the fence without harming them. She is now our chicken herder. However, if we have to catch a chicken, we need to be careful that she can't jump to grab the bird. Something about a chicken's "Help! I'm caught" distress call sends her prey drive over the edge. It's like a squeaky toy. Fortunately, she is usually content with chasing them back where they belong.