Gary Bell/ Oceanwide / Sea Lettuce (Ulva australis) and other alga, Hopkins Island, South Australia, Australia

Mark Carwardine / New Zealand robin (Petroica australis) male, ringed by researchers, South Island race, Ulva Island, Paterson Inlet, Stewart Island, South Island, New Zealand, June

Mark Carwardine / New Zealand robin (Petroica australis) male, ringed by researchers, South Island race, Ulva Island, Paterson Inlet, Stewart Island, South Island, New Zealand, June

Brent Stephenson / Crown fern (Blechnum discolor) with new unfurling fronds developing, Ulva Island, Stewart Island, New Zealand, November.

Brent Stephenson / Wheki / Rough tree fern (Dicksonia squarrosa) frond unfuling, Ulva Island, Stewart Island, New Zealand, November.

Brent Stephenson / Greenhood orchid (Pterostylis auriculata) close up of flower, Ulva Island, Stewart Island, New Zealand, November.

Brent Stephenson / Greenhood orchid (Pterostylis auriculata) flower, Ulva Island, Stewart Island, New Zealand, November.

Brent Stephenson / Rimu (Dacrydium cupressinum) close up of young leaves, Ulva Island, Stewart Island, New Zealand, November.

Brent Stephenson / Dancing spider orchid (Corybas acuminatus) flowering, amongst mosses on the forest floor, Ulva Island, Stewart Island, New Zealand, November.

Brent Stephenson / New Zealand spider orchid (Corybas oblongus) in flower, Ulva Island, Stewart Island, New Zealand, November.

Brent Stephenson / New Zealand spider orchid (Corybas oblongus) flower, Ulva Island, Stewart Island, New Zealand, November.

Brent Stephenson / Adult Red-crowned parakeet (Cyanoramphus novaezelandiae) foraging on totara (Podocarpus) fruits in the sub-canopy. Ulva Island, Stewart Island, New Zealand, February.