Nyctalus azoreum hunts on the wing in practically all habitats, including forests, pastures, water sites and human settlements, often ca.25 m above ground, favouring natural lagoons and urban areas with streetlights (Rainho 2021). However, detailed information on its foraging ecology and diet is unavailable. Roosts are found in trees, rock crevices in cliffs, and buildings (Rainho et al. 2002). Besides being active at night, bats also forage in the daytime, probably in response to the absence of diurnal avian predators.

The Azorean Bat (Nyctalus azoreum) is restricted to the Azores Archipelago (Portugal), where it occurs on all islands except Flores and Corvo (Dechmann and Ruczynski 2020) from sea level to, at least, 1,150 m (Rainho 2021). The AOO (= 1,060 km²) was estimated using 2x2 km grid cells.

Nyctalus azoreum is protected by national legislation in Portugal as well as by the Eurobats Agreement and Bern Convention. It is included in Annex IV of the EU Habitats Directive. An ongoing LIFE+ project (LIFE17 IPE/PT/000010) has, among its objectives, to increase the knowledge needed for the conservation of this bat species. This species needs substantial monitoring and ecological work to identify precisely population size, trends and conservation requirements. Its protection certainly implies the preservation of roosting and foraging sites, as well as the reduction of pesticide spread.