Today we tried to let our dogs out 1 by 1 to see how they would do with the chickens being out of the coop. Out of the 4 dogs (3 yorkies and a lab) two yorkies tried to chase them down. The oldest yorkie who is 10 followed them around at a safe distance. When they would turn to come by where she was she would run off. Now for the lab...she did GREAT! She literally could have cared less. My husband threw her ball by them she didn't even pay attention to them. Our RIR came up to her and pecked her on the nose and she just laid there.