I was just in the Hilton Head area for a few days, actually Daufuskie Island, which is adjacent.
I saw at least 3 Troyer houses up there, in what look like pretty good sites. I was surprised to see no martin activity.
Have the martins in Hilton Head area already fledged their young?
Or do these Troyer house people need to hang a few gourds under them to attract martins?