Wrench1 - seems it was a very self-inflicted problem ... You start by introducing them for sport and then suddenly you have millions of them.
True to a point. The other half is the loss of habitat which is compounding the existing problem. I've been dealing with this issue for over 30 years as a land lessee/owner and supported various aerial ops but not the pay-for-hunt type in the video. Most state hog populations were managed effectively up until the 80s and 90s when the sport hunting side took off. Free enterprise at its best and worst. Just like the python issues in the Florida Everglades, the nutria in the marshes of the GOM, and the Kudzu plants of the southeastern US. They all started as good ideas but people were clueless on the ramifications when they released these animals/plants into prime survival areas. With luck, if the current chemical treatments continue to work, along with all the other measures being used, to include the aerial cowboys in the OP, they may get the populations back into control, but never 100% eradicated. At least thats how things are moving around my end of the spectrum. Now back to our regular programing......