Have your dog eat one of those poison killed mice and you might think twice about using it. We can' keep barn cats around due to fox, coyote, great horn owls, but the neighbors replenish theirs about every two years. We get the benefit when those visit our barn at night,
This^^^^^I have dogs so poison isn't an option.
As for Cats... the only way they're effective is if you never feed em and few people will do that these days..
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Until someone comes up with a tried and true answer I'll just keep resetting my traps and cussing.
