Which statement best describes the Big Brown Bat's roosting pattern?

Which statement best describes the Big Brown Bat's roosting pattern?

• A. It roosts in solitary pairs
• B. It roosts in tropical forests
• C. It roosts in colonies of 10-80 bats
• D. It roosts outdoors only during the day

Answer: (C)

Big Brown Bats socialize while at rest and commonly roost in groups rather than alone. They typically form colonies that can range from about 10 up to around 80 individuals, a pattern that helps with warmth and protection during cold periods and when caring for young. This colonizing behavior is flexible in terms of site, including buildings, tree crevices, caves, or under bridges, which fits many North American landscapes, including Alberta. They are not restricted to tropical forests, and they roost in sheltered spots during the day, not exclusively outdoors during daylight. Because the typical resting group size aligns with the 10–80 range, this description best matches the Big Brown Bat’s roosting pattern.

Big Brown Bats socialize while at rest and commonly roost in groups rather than alone. They typically form colonies that can range from about 10 up to around 80 individuals, a pattern that helps with warmth and protection during cold periods and when caring for young. This colonizing behavior is flexible in terms of site, including buildings, tree crevices, caves, or under bridges, which fits many North American landscapes, including Alberta. They are not restricted to tropical forests, and they roost in sheltered spots during the day, not exclusively outdoors during daylight. Because the typical resting group size aligns with the 10–80 range, this description best matches the Big Brown Bat’s roosting pattern.