Ecological management is a complex and very difficult issue. There's a lot more than just killing feral cats or removing invasives and reintroducing the native species. Not all invasive species are bad but some are horrible.
I know cats have impacted our quail populations and are putting a serious dent in the population, however how do you explain to the five year old the next farm over that you shot his beloved tabby?
I would start with
"Son this here is a .223 calibur rifle..."