Among its recorded monuments is a field boundary, the kind of feature that rarely draws attention precisely because it looks so unremarkable. A low line of stones laid to divide one patch of ground from another seems like a modest thing, yet field boundaries of this type can represent centuries of continuous land use, their alignments sometimes predating the communities most recently associated with them by a considerable stretch.

Field systems on the small islands of Galway Bay and the wider Connemara coast often reflect patterns of subsistence farming and seasonal grazing that developed over a long period, shaped by the particular pressures of island life, thin soils, Atlantic weather, and the need to manage limited ground carefully. On islands that were inhabited into the nineteenth or even twentieth century, these boundaries were maintained and rebuilt across generations; on those that were abandoned, they survive in a quieter state, the stones settling slowly back into the land. Davillaun falls into the latter category, an island without a permanent population today, which lends its surviving earthworks and structures an additional kind of stillness.