Birds nesting in an underground parkade could have been locked in when the parkade was converted to a campus bike centre with doors on the end. The swallows quickly learned how to trigger the motion detectors to open the doors and go in and out whenever they want. Smart birds!
“For licensing enquiries please contact licensing@bravebison.io”
To add to the conversation about how intelligent birds and other animals can be, see the Smart Birds Open Doors Facebook Page. See https://www.facebook.com/pages/Smart-Birds-Open-Doors/444051655763838
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