Acoustic Monitoring

Bat accoustic monitor on fence
Bat acoustic monitor

Bats, like birds, have distinctive calls, but the calls are mostly in the ultrasonic range. Using bioacoustic monitors, we can record and analyze the calls to determine which species are present in an area.

sonogram
Northern Long-eared Bat Call
sonogram of call from a bat
Silver-haired Bat – Lasionycteris noctivagans
sonogram of call from a bat
Big Brown Bat – Eptesicus_fuscus
  • Four species of bats were able to be detected through acoustic monitoring at the North Chicago Wetland Site
  • We detected Big Brown, Eastern Red, Hoary, Silver-haired, Little Brown, Tricolored, and Evening Bats at the Orland Grassland sites and similar species composition between the Orland reference and restoration sites.
  • We detected Big Brown, Eastern Red, Hoary, Silver-haired, Little Brown, Evening, and Tricolored Bats at both Pine Dunes units

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