I'm so sorry. My dogs killed one of our cats a year and a half ago and I know how devastating it is. Believe me, I was MAD at them but once I calmed down, realized they were only doing what comes naturally to them. Since then we have never left the house without making sure the other cat is secured in a space separate from the dogs so he cannot meet the same fate (they all get along just fine when we're home with them). I currently have chicks in a brooder in the living room, but knowing the history with the dogs, haven't dared leave them home alone with them, even though there isn't a problem when we are there. The dogs literally go everywhere with me at the moment (luckily since its not the heat of summer they can sit in the back of the car for awhile....) A parent at my son's soccer game last week commented on my "friends", thinking I was bringing the dogs because I couldn't bear to be separated from them. I told her "no, its because I don't trust them at home". She laughed and then I told her about the chicks and she seemed to instantly understand. Incidentally, because the cat would also be willing to prey on the chicks, he continues to be secured when we are out so I guess he's used to the "leaving ritual" by now LOL.
Although I know you are feeling upset with the dog right now, she wasn't doing it maliciously but just because that is what (some breeds of) dogs do.
