A few months back, when there was a road construction near our area, the rats moved in the neighborhood. There were two big ones that were digging in our yard and we were concerned that they were going to cause us a big problem so we set a trap but it did not work.
Our good neighbor came to the rescue and lent us their poison peanut pellets. They definitely took the bait and ate the pellets, we found them dead! One of it died under the steps of our back porch so we couldn't get it out, it stunk so bad but we're glad that they died.