I have a Springer Spaniel who believes she is the mom to my chickens. When I get in a new order of day old chicks, she is more excited than me. Will immediately start sniffing them and before long she will have them 'nested' within her fur. I've had to put her in her kennel at times because she won't eat and paces between brooder boxes...worried about her babies. When I move them outside to a run, she goes in the run with them during the day. Has never hurt one and I truly believe keeps other critters away from them. Loves to go 'put the chickens up' at night with me. Has even picked up a couple of 'escapees" for me and been gentle. Not sure why she does this as she is a BIRD dog but it's worked out. My other two dogs don't mess with them ...mostly ignore them but Lilly loves her duties as Chicken Mom. This photo is of Lilly and a new set of babies we got in....she just sets and stares at them. I finally moved her bed over to be next to them.