This video from Bermuda says about itself:
Petrel Adult Returns to the Burrow And Feeds Chick (edited) – March 8, 2018
Watch this short highlight of a nighttime feeding visit by one of the adult cahows as it returns to the nesting burrow to spend a few hours with its chick. Both parents have been busy foraging over the Atlantic Ocean in an attempt to provide enough food to feed this ever-growing ball of down.
A single foraging trip can take between 3 to 10 days, after which they will return to feed their youngster partially digested pelagic fare like squid, small fish, and shrimp-like crustaceans.
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/cahows and learn more about Nonsuch Island‘s environs (including the cahow) at http://nonsuchisland.com.