I rarely use poison (the only exception to that is in the crawlspace of the house for mice). Non-target animals are too easily killed, and my dog has full run of the property that isn't wooded (I keep an eye on her so she doesn't leave the property), but she could grab some poison if it was by the feeder.
The only poison that I use on a consistent basis is a type of lead poisoning administered in high velocity packages.
