A large group of these bats comes to feed on figs from a native tree (Ficus eximia) planted on the sidewalk in my neighborhood every time it has ripe fruits (one/twice a year). This time they came for over five consecutive days, every nigh for many hours, and I estimated they were about 30 individuals. Bat specialists who saw the pictures agreed that most probably they are this species of Artibeus, quite common in the region.