Markus Varesvuo / White-fronted goose (Anser albifrons) and Taiga bean goose (Anser fabalis rossicus) flocks in flight and on water. Latvia. April.

Lorraine Bennery / White-fronted brown lemur (Eulemur albifrons) climbing tree, looking at camera. Rainforests of the Atsinanana, Marojejy National Park, Madagascar.

Lorraine Bennery / White-fronted brown lemur (Eulemur albifrons) in tree, Rainforests of the Atsinanana, Marojejy National Park, Madagascar. Endangered species, endemic.

Lorraine Bennery / White-fronted brown lemur female (Eulemur albifrons), sitting in tree, Rainforests of Atsinanana, Marojejy National Park. Madagascar, Endangered, endemic.

Hans Glader/ BIA / White-fronted Goose (Anser albifrons) group flying, North Rhine-Westphalia, Germany

Chien Lee / White-fronted Brown Lemur (Eulemur fulvus albifrons) male, Marojejy National Park, Madagascar

Bence Mate / White-throated Mountain Gem (Lampornis castaneoventris), Green-crowned Brilliant (Heliodoxa jacula) group of three with one in flight, Savegre, Costa Rica

Wim van den Heever / White-fronted bee-eaters (Merops bullockoides) perched near to nesting holes Chobe National Park, Botswana.

Suzi Eszterhas / White-faced Capuchin (Cebus capucinus imitator) mother and baby. Osa Peninsula, Costa Rica

Edwin Giesbers / White-fronted Goose (Anser albifrons) in flight over grassland. The Netherlands.

Pete Oxford / White-fronted capuchin monkey (Cebus albifrons) drinking from a discarded coke bottle, Puerto Misahualli, Amazon rainforest, Ecuador, South America January 2005 December 2004

Pete Oxford / White-fronted capuchin monkey (Cebus albifrons)emerging from river with food, Puerto Misahualli, Amazon rainforest, Ecuador, South America