This video from Bermuda says about itself:
Land Crab Pays Visit To Cahow ChickBermuda petrel parents visit their chick – May 29, 2019
Watch a land crab slowly creep into the Bermuda Petrel nesting burrow and make its way around the sleeping chick. The crab doesn’t stay for long; it scuttles away as soon as the large nestling is awakened.
The CahowCam is a collaboration between the Cornell Lab of Ornithology and the Nonsuch Expeditions. You can watch the cam live at http://allaboutbirds.org/cahow.