
When Townsend’s big-eared bats return to Mallory Cave from their high-elevation, winter roosts in late April, the small bat colony will be greeted with a new entrance to their home.
Staffers from Boulder’s Open Space and Mountain Parks department — with the help of a burly AmeriCorps crew — are working to install a gate at the mouth of Mallory Cave that’s adorned with an “outflight” of metal bats and topped with a silhouette of a Townsend’s big-eared bat.
The gate is designed to protect the bats during the summer, when they’re raising their young. Mallory Cave, which sits west of the National Center for Atmospheric Research, hosts one of 11 known maternity colonies for Townsend’s big-eared bats in Colorado.
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