The logic is hard to fault. A clochan, the corbelled stone structure built without mortar that appears across early medieval Ireland and is particularly common on the Dingle Peninsula, is weatherproof, solidly constructed, and round, which suits a pig about as well as it suits a monk. The repurposing is practical, unsentimental, and quietly telling about how these structures have been absorbed into the working landscape over the centuries rather than preserved at a reverent distance.

The conversion was noted by the archaeologist R.A.S. Macalister in 1899, which places at least the observation, if not the adaptation itself, firmly in the late nineteenth century. Macalister was documenting the area at a time when Ireland's early Christian and prehistoric monuments were beginning to attract serious scholarly attention, and the Dingle Peninsula, with its extraordinary concentration of stone structures, ogham stones, and souterrains, was fertile ground. That a clochan in Gleann Fán had been pressed into agricultural service rather than left as a curiosity says something about rural pragmatism on the peninsula, where old stone was simply old stone, available and useful.