Using the rat baits and rat bait stations, I haven't had anything get into the bait boxes. I'm sure you could find a place to put one. I have a couple of them in our barn which is behind the coops. Most of the rats have tunnels and after they have had some poison, they go down into their tunnels and die. I did some research and more often than not most dogs and cats that eat a rat that has been poisoned will be ok.
"Secondary Poisoning is Rare
Although secondary poisoning is possible, it is unlikely to occur. Anticoagulant baits are manufactured with low dosages of active ingredients that range from 25 parts to 50 parts per million. A 20 lb dog would need to consume a range from 1.6 to 96 ounces of baits such as Contrac (bromadiolone) or Final(brodifacoum) to get poisoned in both primary or secondary poisonings.
The chances of a pet to consume enough carcasses of a dead rat to accumulate sufficient poison for secondary poisoning would be low. It is more likely to occur with a high population of dead poisoned rats that are accessible, coupled with pets or non-targeted animals that are foraging for food due to hunger. Most pets are loved and fed well. They would need to be very hungry for them to eat many dead carcasses of rats."
