[fencepost]

They should drop 1500 cats instead.

Frankly that's a terrible idea. If they were going to introduce a new predator species they'd likely be better off with a limited number of terriers trained at ratting (at least for a first generation), but that could have a significant impact on other wildlife on the island even if they were less inclined than cats to hunting birds.

Overall the original plan sounds like it had a lot of thought behind it. They're talking about grain pellets (most sea mammals and seabirds aren't likely eating a lot of grain), at a time when most birds and sea mammals are away from the islands anyway, with crews retrieving as many mouse corpses as possible so other animals won't eat them and be exposed. They acknowledge that some non-targeted birds and animals will be affected, but in small enough numbers to not pose a serious risk to the population - and likely in smaller numbers than would be impacted by failing to address the mouse problems.

More details at a non-firewalled article: https://www.mercurynews.com/2019/07/11/like-dropping-a-nucle...

[fencepost]

A followup if anyone is still reading, I originally didn't mention that they're basically attempting to eliminate the mice on the islands not just control the population.

"the only battle-tested and proven method to ensure the mice do not return. Nearly 50 other methods that were explored such as using contraceptives, individual traps, pathogens and others were deemed infeasible or unable to end the mouse problem for good."