Little Brown Bat (Myotis, several species)
Less than 4″ long Common
Big Brown Bat (Eptesicus fuscus)
More than 4″ long Reddish-brown fur Common
Pipistrelles (Pipistrellus subflavus)
The “Pigmy Bat,” under 3″ long Rare
Silver-haired Bat (Lasionycteris noctivagans)