Collecting bat ‘guano’ reveals surprise species in Illinois

Within the deep, rolling wooded ravines along the Embarras River south of Charleston is a biologically rich area known as Warbler Ridge. This 1,059-acre site contains five areas protected within the Illinois Nature Preserves Commission system.
Lately, bats are drawing the attention of volunteers and visitors – and, since 2018, they are attracting a team of Illinois researchers.

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