File photo taken on Jan. 31, 2019 shows gannets on a bank in Wellington, New Zealand. (Photos: Xinhua)

File photo taken on Jan. 31, 2019 shows a gannet couple in Wellington, New Zealand.

File photo taken on Jan. 31, 2019 shows an adult gannet feeding its brood in Wellington, New Zealand.

File photo taken on Jan. 31, 2019 shows a gannet habitat on a bank in Wellington, New Zealand.

File photo taken on Jan. 31, 2019 shows a gannet habitat on a bank in Wellington, New Zealand.