Somebody stated vinegar- do you mix with anything ?
Here's a vinegar based recipe Terry
you can also make a borax one
This site has ways to kill them without pesticides: https://www.wikihow.com/Kill-Ants-without-Pesticides
I use packaged cornbread mix that says it is sweetened and put it where they are. They will take it to the mound, everyone will eat it and die, they can't digest the cornmeal, but will take it because it is sweetened. Little goes a long way.
I read this from : Itsmemic
Medicated powder from the Dollar Tree. It has eucalyptus in it...menthol...I puff it around my homes foundation..and inside under my birdcages in the cracks under moldings. Work immediately and they never come back. I do this at the first sign of ants..in one day..GONE. The powder is in a very large container and lasts quite awhile too !! And smells great !
Not toxic to my birds OR dog
What if you make a barrier around the house.
I did some research, since we know what works for one person doesn't always work for another. I found this site and it's pretty informative. I know some tips you may not be able to use but there are some good ones also that will hopefully help.
Ants are so weird. One time I found them inside the freezer in the garage!! What would possess them to go inside a freezer only to die? They must have sent signals back or something ~ there were no ant trails only a freezer full of dead ants. Hasn't happened since.
Ant Spray - https://www.hometalk.com/31195184/cheap-easy-homemade-ant-spray?
Ants die when they eat cornmeal. They cannot digest it, but the best part is that they take it to the nest and feed it to the queen so the colony dies. Here is the safest, easiest, least expensive way: https://www.hometalk.com/36651130/ants-safe-and-effective-cure