Fiona Rogers / Mantled Colobus (Colobus guereza) young male ingesting soil for its salts and minerals, Kakamega Forest Reserve, Kenya

Konrad Wothe / Chestnut-fronted Macaws (Ara severa) and Dusky-headed Parakeets (Aratinga weddellii) at claylick, Tambopata National Reserve, Peru, South America.

Glenn Bartley / Red and Green Macaw (Ara chloroptera) group foraging for minerals at clay lick, Manu National Park, Peru

Glenn Bartley / Red and Green Macaw (Ara chloroptera) pair foraging minerals at clay lick, Manu National Park, Peru

Glenn Bartley / Red and Green Macaw (Ara chloroptera) group foraging for minerals at clay lick, Manu National Park, Peru

Glenn Bartley / Blue-headed Parrot (Pionus menstruus) flock at clay lick, Ecuador

Glenn Bartley / Mealy Parrot (Amazona farinosa) group at clay lick, Ecuador

Glenn Bartley / Mealy Parrot (Amazona farinosa) group at clay lick, Ecuador

Glenn Bartley / Dusky-headed Parakeet (Aratinga weddellii) group at clay lick, Ecuador

Glenn Bartley / Yellow-crowned Parrot (Amazona ochrocephala) pair at clay lick, Ecuador

Murray Cooper / Dusky-headed Parakeet (Aratinga weddellii) flock at clay lick, Napo River, Yasuni National Park, Ecuador

Pete Oxford / Dusky-headed Parakeet (Aratinga weddellii) flock at clay lick feeding on minerals, Yasuni National Park, Amazon, Ecuador