Good. The Amdro should work. That is specifically for fire ants. The other stuff, diatomaceous earth, Terra bait traps, bacon grease, etc. is useless.
Fire ants will kill and consume newborn fawns.
Yes, those are Brazilian fire ants. They are an invasive species and destroy lots of wildlife, including nesting reptiles and birds. They have become a serious issue in the southeastern states.
They would kill a tortoise without question. None of those household remedies mentioned above (ant...