The animal bones found at the rockshelter of Boila, belonging to wild goats, chamois of the Alps and red deer, show that hunting was not limited exclusively to the steep slopes of the valley or on small plateaux above Voidomatis, but was practised also on the semi-plain basins. The study of red deer bones has shown that their hunting was possibly a spring as well as a summer custom.

The hunters of Boila were thus possibly aware of the red deer's habit to emigrate during the spring and summer months from the coastal plains to grasslands or inland sparse woodland regions.

The nutritional needs of the rockshelter's inhabitants were complemented by rabbits, castors, birds, land gastropods, fish and fresh-water shells. Indicative, though limited, of the movements of the hunter-gatherers, is the presence of marine shells. Some of them had an artificial hole and were probably symbolic objects (amulets).

The distribution of finds in space and time together with the study and reconstruction of the paleoenviroment of the Vikos gorge, has lead to the conclusion that the rockshelter Boila served from the 14th and up to the 12th millenium BP as a seasonal refuge for the hunter-gatherers.

During the 14th millenium BP, the rockshelters of Kleidi and Megalakkos were also in use. The site Kleidi appears to be the more significant one among the three rockshelters at the Vikos gorge for the period 16,000-13,000 BP. Only during the transition from the Pleistocene to the Holocene, did Boila acquire an important role in the housing network of Epirus, especially as far as the exploitation of mountainous areas is concerned.