As the contractor was preparing to install the new door he said he noticed what might be termites.
My daughter got on the phone immediately and called Orkin. Orkin came rather quickly to discover they were only little black ants. (Thank goodness!) They treated us for the ants, but now we are going to have them come back and give us a treatment for termites.
Here is the new door all installed. Now all it needs is some paint!