I just came across this terrible news on the loss of your Duncan. I am so sorry; I hope that you and your family are doing ok. Duncan was so very brave.
AWChickens I am so sorry that brave litte guy did not make it.
You have just lived through my fear. My little 10 lb ChiChi has the attitude of rottweiller and has cornered a young mountain lion. I am so afraid he going to be killed. He would have done the same thing as your little guy.