This video is called Bermuda’s Treasure Island / Bermuda Petrel feeding chick.
From BirdLife:
Bermuda Petrel returns to Nonsuch Island (Bermuda) after 400 years
24-03-2008
Three Endangered Bermuda Petrels (Pterodroma cahow – also known as the Cahow), translocated to Nonsuch Island before fledging in 2005, have returned to the island, and been observed entering artificial nesting burrows constructed for them.
Bermuda Petrel was thought extinct for almost three centuries. In 1951, 18 pairs were rediscovered breeding on sub-optimal rocky islets in Castle Harbour, Bermuda.
The birds began to be moved to Nonsuch, in the entrance to Castle Harbour, after Hurricane Fabian (2003) caused the flooding and partial collapse of the islets, which contained the entire known breeding population.
In the last four years, a total of 81 chicks have been translocated, of which 79 have fledged successfully.
The 6.5 hectare (15.5 acre) Nonsuch Island Nature Reserve has potential nesting habitat which is elevated enough to be safe from hurricane flooding and erosion. The present nesting islets total less than one hectare (2.4 acres).