We are not sure what type of ants you have based on your description (most ants will eat dead animals as they need protein during certain times of the year) but using Termidor SC
around the exterior of your structure should help eliminate them. Termidor is a non-repellent insecticide that also has a transfer effect. That means that ants cannot tell that the Termidor is there and will walk right over it and then pick the product up on their bodies and inadvertently carry it back to the colony. Then, through normal social interaction, the ants spread the Termidor and wipe out the colony. Termidor only needs to be applied two times per year and is effective for a wide variety of insects including ants, centipedes, roaches, spiders, silverfish, wasps and many other nuisance insects.