I don't think it's a fair comparison. From the article:
The brown tree snake has devastated several species to the point that the battle (for those species) is over. Perhaps the baited mice will help keep the snake from moving on to another species. And remember, Hawaii is the next big concern. Sometimes containment, despite any possible additional side effects, is the best solution on a macro perspective.Experts say the impact on other species will be minimal, particularly since the snakes have themselves wiped out the birds that might have been most at risk.
"One concern was that crows may eat mice with the toxicant," said William Pitt, of the U.S. National Wildlife Research Center's Hawaii Field Station. "However, there are no longer wild crows on Guam."