Aren there predators or scavengers that will be exposed to the rodenticide by eating dead rats?
There are no land mammals on Rat Island. Eagles occasionally take rats. However, during a 2006 bait trial conducted on islets near the Aleutian island of Adak in preparation for this project, 88 percent of the rats exposed to the rodenticide died in their underground burrows and were thus inaccessible to eagles. It is unlikely that any eagles will suffer noticeable effects from eating rats. In the 2006 bait trial, no eagles were found sick or dead. More details can be found in the environmental assessment.
