This video says about itself:
Yellow-crowned Night-Heron Passes By Cahow Cam On Nonsuch Island, Bermuda – June 24, 2020
This Yellow-crowned Night-Heron lives up to its name while passing by the cahow burrow entrance in the early morning hours of June 24. Yellow-crowned Night-herons were introduced to Bermuda in the 1970s to help control a land crab population which had exploded following the extinction of the endemic Bermuda Night-Heron in the 1600s following human colonization.
Both the 2017-2018 cam burrow and the original 2013-2014 burrow are visible, as well as this above-ground view of Nonsuch Island (where the cams are based).