In America, the kind Nycticeius gathers two species of Chauve-
souris of the family of the Vespertilionidae; - Nycticeius
humeralis (Rafinesque, 1818) - evening bat - Nycticeius cubanus
(Cuban Evening Beats) - evening bat of Cuba. DescriptionThe
evening bat is a small brown bat weighing 7 to 15 grams.
DistributionOne finds it in most of the United States; in almost
all the Middle-West and south-east. Dans of many sectors
(particularly littoral states of Gulf) they are very common, but
can have populations reduced in some states. LifestyleThe
summer, this species spent the day in the cavities of old trees,
but one finds some sometimes in more artificial habitats. The
colonies living in the trees are generally small, but certain
groups living in buildings reach almost the 1.000 individuals.
La evening bat is often regarded as migrating, but of recent
work suggest that some individuals can be sedentary, even in the
north of their surface of distribution. In winter, the
individuals are gathered in their cavities o