They bark in the backyard when neighboring dogs bark. What is hysterical is Chelsea's howl when there is a siren. Missy will only bark for so long and then she runs for protection from whatever Chelsea is barking at. I think she barks once or twice just because Chelsea has barked and then runs away. I haven't tried the spray bottle for barking...that's a really good idea. I got a bark box shaped like a birdhouse for the backyard hoping to deter her barking especially at night when people would have gone to bed. It didn't work so dh insisted on a bark collar. I hate those things, but thankfully I have only had to put it on her twice. Now I only have to pick it up and she stops.
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