It is the kind of place that appears on maps without explanation, recorded as a monument of archaeological interest yet yielding almost nothing further to the casual enquirer. That gap between designation and detail is itself telling: somewhere on or around this island, something was considered significant enough to warrant formal recognition, even if what exactly that something is remains largely unannounced to the public.

Mayo's coastline and its scattered islands have long histories of human activity, from early monastic settlement to the remains of fishing and farming communities that predate any written record. Islands in particular were favoured by early medieval hermits and small religious communities, drawn by the isolation and the natural boundary water provides. They also served practical purposes, as seasonal grazing ground or as defensible positions. Without more specific information presently available about Birds Island, it is difficult to say which, if any, of these stories applies here. What is certain is that the island holds a classified archaeological monument, placing it in the same broad category as crannogs, ring forts, souterrains, and the many other traces of human presence that punctuate the Irish landscape.