Claudio Contreras / Green heron (Butorides virescens), Xochimilco wetlands, Mexico City, June

Cheryl-Samantha Owen / Green-backed heron (Butorides striatus) jumping, Aldabra Atoll, Seychelles

Hanne & Jens Eriksen / Striated heron (Butorides striata) with Scorpionfish (Scorpaenidae) in beak, standing on rock. Oman, November

Ann & Steve Toon / Greenbacked heron (Butorides striatus) peering from perch, Zimanga private game reserve, KwaZulu-Natal, South Africa.

Ann & Steve Toon / Greenbacked heron (Butorides striatus) walking through water, Zimanga private game reserve, KwaZulu-Natal, South Africa.

Tony Heald / Green-backed heron (Butorides striata) Kruger National Park, South Africa.

George Sanker / Green heron (Butorides virescens) fishing from branch perch above water. Everglades National Park, Florida, USA. March.

Lucas Bustamante / Green Heron (Butorides virescens). Yasuni National Park, Orellana, Ecuador

John Shaw / Striated heron (Butorides striata) standing on giant Amazon waterlily leaf (Victoria amazonica). Porto Jofre, Pantanal, Brazil. September.

Nick Hawkins / Lava / Galapagos heron (Butorides sundevalli) with Marine iguanas (Amblyrhynchus cristatus) in background. Isabela Island, Galapagos.

Nick Hawkins / Lava / Galapagos heron (Butorides sundevalli) standing amongst volcanic rocks. Isabela Island, Galapagos.

John Chan / Green heron (Butorides virescens) stalking and catching a Topsmelt silverside (Atherinops affinis) on the edge of a tidal flat, Bolsa Chica Ecological Reserve, California, USA, September.