Neil Aldridge / Woodland kingfisher (Halcyon senegalensis) perched in woodland, on the banks of the Letaba River, Kruger National Park, South Africa.

Piotr Naskrecki / Large Striped Swordtail (Graphium antheus) butterflies, Gorongosa National Park, Mozambique

Michael & Patricia Fogden / Green-spotted Swallowtail (Graphium tynderaeus) butterfly, Tangkoko Batuangus Reserve, Indonesia

Piotr Naskrecki / Large Striped Swordtail (Graphium antheus) butterflies at waterhole, Gorongosa National Park, Mozambique

Piotr Naskrecki / Large Striped Swordtail (Graphium antheus) butterfly, Gorongosa National Park, Mozambique

Hanne & Jens Eriksen / Spot swordtail butterflies (Graphium nomius) puddling, Thailand

Alex Hyde / Blue jay butterfly (Graphium evemon eventus) Danum Valley, Sabah, Borneo.

Jiri Lochman / Macleay's Swallowtail Butterfly (Graphium macleayanum), Gibraltar Range National Park, Gondwana Rainforest UNESCO World Hertiage Site, New South Wales, Australia.

Jen Guyton / Several species of butterfly from the genus Graphium 'puddling' in Gorongosa National Park, Mozambique.

Jen Guyton / Several species of butterfly from the genus Graphium 'puddling' in Gorongosa National Park, Mozambique.

Dave Watts / Macleay's swallowtail (Graphium macleayanum) Tasmania, Australia

Dave Watts / Macleay's swallowtail (Graphium macleayanum) Tasmania, Australia

Tim Laman / Great jay butterfly (Graphium eurypylus) puddling on the ground, West Papua.