Kirkendall-Spring / Tree on a overhanging cliff wall along Kalaloch Beach in Olympic National Park, Washington, USA, April 2018.

Neil Aldridge / Two adult African jacanas (Actophilornis africanus) flying over reedbeds, Selinda Spillway, northern Botswana.

Steven David Miller / Comb-crested jacana (Irediparra gallinacea) male and four eggs. The male incubates the eggs. Corroboree Billabong, Mary River, Northern Territory, Australia.

Sylvain Cordier / Comb crested jacana (Irediparra gallinacea), walking over waterlily pads, Kakadu, Northern Territory, Australia

Roger Powell / Comb-crested jacana (Irediparra gallinacea) walking over lotus lily-pads. Fogg Dam, Northern Territory, Australia

Pete Oxford / Capybara (Hydrochoerus hydrochaeris) with Wattled jacana (Jacana jacana) on back. Northern Pantanal, Mato Grosso, Brazil.

Kim Taylor / Northern Jacana (Jacana spinosa) displaying, showing wing spurs, Costa Rica

Kim Taylor / Northern Jacana (Jacana spinosa) displaying, showing wing spurs, Costa Rica

Mike Potts / Comb Crested Jacana (Irediparra gallinacea) feeding in among the lotus flowers with a chick. Kakadu National Park, Northern Territory, Australia, July

Mike Potts / Comb Crested Jacana (Irediparra gallinacea) juvenile feeding among lilies. Kakadu National Park, Northern Territory, Australia, July

Mike Potts / Comb Crested Jacana (Irediparra gallinacea) juvenile feeding among lilies. Kakadu National Park, Northern Territory, Australia, July

Mike Potts / Comb Crested Jacana (Irediparra gallinacea) feeding on lily seeds, Kakadu National Park, Northern Territory, Australia.

Mike Potts / Comb Crested Jacana (Irediparra gallinacea) calling on lily pad, Kakadu National Park, Northern Territory, Australia.