Silver-haired Bat (Lasionycteris noctivagans) is a Special Concern species in Wisconsin. It is easily identified by its dark, silver-tipped fur. The silver-haired bat is insectivorous. During the summer months, silver-haired bats are found in forested habitats, particularly coniferous woodlands, adjacent to aquatic habitats like ponds, lakes, and streams. In the fall they may migrate to southern states where they continue to forage and breed. Over the winter, when they are not active, silver-haired bats can also be found hibernating in caves and protected structures like inside trees, rock crevices, and buildings. Females store sperm until spring when they return to summer habitat where they usually have one pup in early-June.
