I have a 15lb rat terrier. I know this breed is a natural hunter of small animals (rat is part of the name!). We've had him for 5 years already, so he's family. We've had chicks for about a month now. We got the chicks when they were 4 weeks old and my dog killed one on the first day! It was an accident that he was even near them, because he wasn't supposed to be. They are in the coop and run now, so they are much safer! My dog has a wireless boundary collar and his boundary line is about 10 feet away from the coop and run. He's been sitting at the boundary line, shaking and staring at the chickens. He wants to attack them, but he can't get close enough (and they're safe in the enclosed run). I'm hoping they'll be able to defend themselves against him when they're full grown. Is there any hope for my dog to accept the chickens? Or is his breed anti chicken forever? Is there anything I can do to help with it?