The answer to 'fire ant scratching sounds' is that the scratching or rustling noises are likely caused by a fire ant infestation in or around your home. Fire ants build mounds in the soil and can often be heard moving around inside the mound or foraging on the surface. The sounds are a sign that you have an active fire ant colony that needs to be addressed.
Fire ant infestations can be a serious problem, as their stings are painful and can cause allergic reactions in some people. If you're hearing consistent scratching or rustling sounds, it's best to inspect your property for fire ant mounds and take action to eliminate the colony. This may involve DIY treatments like applying insecticide baits or pouring boiling water on the mound, but for larger or persistent infestations, it's recommended to call in a professional pest control technician.