Pete Oxford / Red-footed Booby (Sula sula) flying juvenile being photographed by tourist, Genovesa Island, Galapagos Islands, Ecuador

Pete Oxford / Greater Flamingo (Phoenicopterus ruber) in lagoon with tourists nearby, Isabela Island, Galapagos Islands, Ecuador

Sven Zacek / Photographer Sven Zacek in a tree, photographing yawning Ural owl (Strix uralensis), Tartumaa county, Southern Estonia. February

Sven Zacek / Photographer Sven Zacek photographing Ural owls (Strix uralensis) from a tree hide, Tartumaa county, Southern Estonia. June 2010.

Marie Read / Bird photographers line up at sunrise to photograph mass takeoffs of overwintering Snow geese (Chen caerulescens), Bosque Del Apache National Wildlife Refuge, New Mexico, USA. December 2017.

Jed Weingarten / Wild Wonders of China / Staffan Widstrand speaking at the opening of Bird Love Week near Xian, Shaanxi, China. April 2015.

Sven Zacek / Behind the scenes view of wildlife photographer's camera and set up within a bird hide to photograph Great bittern (Botaurus stellaris). Laanemaa, Western Estonia. March 2018.

Staffan Widstrand / Wild Wonders of China / Wild Wonders of China team celebrating the Bird Love Week at the Tongchuan Crested Ibis Breeding Centre, Shaanxi, China. from left Xie Jianguo, Staffan Widstrand, Chen Jianwei, Jed Weingarten and Mr S...

Staffan Widstrand / Wild Wonders of China / Bird photography hide filled with nature photographers, Baihualing, Gaoligongshan, Yunnan, China

Staffan Widstrand / Wild Wonders of China / Bird photography hides, ecotourism, Tongbiguan Nature Reserve, Dehong Prefecture, Yunnan Province, China, April 2017.

Sue Flood / Photographer Sue Flood taking picture of herself and colony of Emperor penguin (Aptenodytes forsteri) in reflection of someone's goggles, Gould Bay, Weddell Sea, Antarctica.

Sue Flood / Portrait of wildlife photographer Sue Flood photographing Emperor penguins (Aptenodytes forsteri) with Canon camera at Snow Hill Island rookery, Weddell Sea, Antarctica. October 2008.