I used to use .22 Shorts out of longer barreled .22LR rifles to cull the toad population, as native animals getting killed and all that by them. Brain shots so ethical enough (I'm only a fan of ethical as that's how I go), and no noise (pop) and mess (just a small hole in and out). From a high elevated position so exits went into the ground. The birds around here seem to have figured out how to eat them, so there's not many anymore and the smart ones hide. The crows seem to decimate them, so good job there; they're not all that ethical about it though, but they do eat a lot of them, so there's that. More joys of living in the middle of nowhere on tons of land.
Yesterday brush cutting, today will be brush cutting and it'll be brush cutting till I can't hold one up anymore. Too bad the lawn is growing as I'm wasting too much time with the stupid battery powered one, but I guess that doesn't matter as you get more out of the fuel used if you wait a little bit longer. Battery powered drills are good along with other tools you don't need to run constantly. That's made the job on the deck far easier than it would have been, and will be when I put new floorboards on (I'm not making the mistake the builders/carpenters have around here and I'm going in diagonally with the screws so water doesn't pool on top of the heads, which is what created all of the problems in the beginning).