A zoologist captured a courtship ritual between a pair of brown booby birds on Christmas Island, Australia, sharing the footage to YouTube. Christmas Island can, at any one time, be home to up to 7,000 breeding pairs of brown booby.
This footage was shot by Hung-Chang Liu, a Taiwan-based zoologist, who told Storyful that he has regularly visited Christmas Island for two months at a time to study crabs and other wildlife there.
Hung-Chang Liu stated that the footage was originally recorded in February 2014, however, he only shared it to YouTube on March 9 of this year. Credit: Hung-Chang Liu via Storyful