Brent Stephenson / Tui (Prosthemadera novaeseelandiae) on New Zealand flax (Phormium) flowerhead, with yellow pollen on head, Te Awanga Lagoon, Hawkes Bay, New Zealand, November.

Roland Seitre / Silver-eared honeyeater (Lichmera incana) Noumea, South Province, New Caledonia.

Konrad Wothe / Common smoky honeyeater (Melipotes fumigatus) perched in tree, in rainforest. Western Highlands, Papua New Guinea.

Doug Gimesy / Wattlebird (Anthochaera carunculata) perched on a powerline. Brighton, Victoria, Australia. April.

Doug Gimesy / Noisy miner (Manorina melanocephala) feeding on a flowering Eucalyptus sp. Elsternwick Nature Reserve, Elsternwick, Victoria, Australia.

Heather Angel / Black coral vine (Kennedia nigricans) flowers, pollinated by honeyeaters (flowers triggered by honeyeater, releasing the stamens, style and stigma), Western Australia Sequence 2 of 2

Heather Angel / Black coral vine (Kennedia nigricans) flowers, pollinated by honeyeaters (showing untriggered flowers), Western Australia Sequence 1 of 2

Heather Angel / Red wattlebird (Anthochaera carunculata) feeding on nectar of flame grevillea (Grevillea excelsior) Kings Park, Western Australia Botanic garden, Western Australia.

Heather Angel / Red wattlebird (Anthochaera carunculata) nectaring on Fuschia grevillea (Grevillea bipinnatifida). Western Australia Botanic Garden, Kings Park, Perth,

Heather Angel / Red wattlebird (Anthochaera carunculata) nectaring on Grevillea (Grevillea preissii). Western Australia Botanic Garden, Kings Park, Perth, Australia. November.

Heather Angel / New Holland honeyeater (Phylidonyris novaehollandiae) nectaring on Grevillea (Grevillea sp) in garden. Western Australia. September.

Heather Angel / Red wattlebird (Anthochaera carunculata) nectaring on Bottlebrush (Callistemon sp). Bird has brush-tipped tongue. Quaalup Homestead near Fitzgerald River National Park, Western Australia.

Jurgen Freund / Helmeted friarbird (Philemon buceroides) nesting amongst Mangroves (Rhizophora), Cape Tribulation, Wet Tropics World Heritage Area, North Queensland, Australia.

Steven David Miller / Blue-faced honeyeater (Entomyzon cyanotis) feeding on Spider flower (Grevillea sp). Mackay, Queensland, Australia.

Steven David Miller / White-plumed honeyeater (Ptilotula penicillata) perched on branch. Kings Canyon, Watarrka National Park, Northern Territory, Australia.

Steven David Miller / New Holland honeyeater (Phylidonyris novaehollandiae) feeding on red flowers of Eucalyptus. Kangaroo Island, South Australia.

Steven David Miller / Blue-faced honeyeater (Entomyzon cyanotis) perched in Spider flower (Grevillea sp) shrub. Mackay, Queensland, Australia.

Andy Trowbridge / Tui (Prosthemadera novaeseelandiae) portrait. Orokonui Ecosanctuary, Otago Peninsula, South Island, New Zealand. January. Endemic Species.

Steven David Miller / A Blue-faced honeyeater (Entomyzon cyanotis) climbing up a tree, Cania Gorge National Park, Queensland, Australia. September.

Konrad Wothe / Eastern spinebill (Acanthorhynchus tenuirostris cairnsensis) feeding on nectar, Atherton Tablelands, Queensland, Australia, October.

Oriol Alamany / Lewin's Honeyeater (Meliphaga lewinii) perched, rainforest of the Green Mountains, Lamington National Park, Rainforests of Australia UNESCO World Heritage Site, Queensland, Australia

Dave Watts / White-fronted chat (Epthianura albifrons) Tasmania, Australia

Mark Carwardine / New Zealand bellbird (Anthornis melanura) Tiritiri Matangi, North Island, New Zealand, November

Roger Powell / Bell miner (Manorina melanophryx) hunting for insects in a eucalyptus tree. Melbourne, Victoria, Australia

Roger Powell / Red wattlebird (Anthochaera carunculata) perched on a garden fence. Werribee, Victoria, Australia

Tim Laman / Common smoky honeyeater (Melipotes fumigatus) Papua New Guinea

Tim Laman / Belford's melidectes (Melidectes belfordi) perched in a tree. Papua New Guinea

Jurgen Freund / Helmeted Friarbird (Philemon buceroides) feeding on Golden penda flowers, Atherton Tablelands, Queensland,Australia.

Cyril Ruoso / Black-chinned honeyeater (Melithreptus gularis) collecting hair from Koala (Phascolarctos cinereus) for nest building material, Warrumbungle National Park, New South Wales, Australia.

Brent Stephenson / Tui (Prosthemadera novaeseelandiae) with pollen on beak on New Zealand flax (Phormium) flowerhead, Te Awanga Lagoon, Hawkes Bay, New Zealand, November.

Brent Stephenson / Tui (Prosthemadera novaeseelandiae) on New Zealand flax (Phormium) flowerhead, with yellow pollen on the forehead, Te Awanga Lagoon, Hawkes Bay, New Zealand, November.

Brent Stephenson / Tui (Prosthemadera novaeseelandiae) feeding on New Zealand flax (Phormium) nectar, with yellow pollen on head, Te Awanga Lagoon, Hawkes Bay, New Zealand, November.

Brent Stephenson / Tui (Prosthemadera novaeseelandiae) on New Zealand flax (Phormium) flowerhead, with yellow pollen on head, Te Awanga Lagoon, Hawkes Bay, New Zealand, November.

Brent Stephenson / Tui (Prosthemadera novaeseelandiae) on New Zealand flax (Phormium) flowerhead, with yellow pollen on head, Te Awanga Lagoon, Hawkes Bay, New Zealand, November.

Brent Stephenson / Male New Zealand bellbird (Anthornis melanura) perched on a branch,Tiritiri Matangi Island, Auckland, New Zealand, October.

Brent Stephenson / Male New Zealand bellbird (Anthornis melanura) perched on a branch, Tiritiri Matangi Island, Auckland, New Zealand, October.

Andy Trowbridge / Tui (Prosthemadera novaeseelandiae) feeding on sugar water at feeding station for South Island Kaka (Nestor meridionalis meridionalis) Orokonui Ecosanctuary, Otago Peninsula, South Island New Zealand....

Andy Trowbridge / Adult New Zealand bellbird (Anthornis melanura) perched on a sugar water feeder, at feeding station for South Island Kaka (Nestor meridionalis meridionalis) Orokonui Ecosanctuary, Otago Peninsula, So...

Andy Trowbridge / Adult New Zealand bellbird (Anthornis melanura) perched on a branch in the understorey. Orokonui Ecosanctuary, Otago Peninsula, South Island New Zealand. January. Endemic Species.

Jurgen Freund / Noisy miner (Manorina melanocephala) feeding on palm tree seed pods. Northern Territory, Australia.

David Tipling / New Zealand Bellbird (Anthornis melanura) Tiritiri Matangi Island, New Zealand, November.

Brent Stephenson / Adult Tui (Prosthemadera novaeseelandiae) taking off from a New Zealand flax (Phormium) flowerhead whilst foraging for nectar. Note the yellow pollen on the forehead. Te Awanga Lagoon, Hawkes Bay, New...

Brent Stephenson / Adult male Bellbird (Anthornis melanura) perched on a branch and puffed up calling in an aggressive display. Tiritiri Matangi Island, Auckland, New Zealand, September.

Brent Stephenson / Immature male Bellbird (Anthornis melanura) perched on a branch in the understorey. Shows some retained juvenile flight feathers and less purple on the face than in adults. Tiritiri Matangi Island, Au...

Brent Stephenson / Adult male bellbird (Anthornis melanura) perched on a branch in the understorey. Tiritiri Matangi Island, Auckland, New Zealand, September.

Brent Stephenson / Adult male Tui (Prosthemadera novaeseelandiae) perched on a New Zealand flax (Phormium) flowerhead whilst foraging for nectar. Note the yellow pollen on the forehead. Tiritiri Matangi Island, Auckland...

Brent Stephenson / Adult male Bellbird (Anthornis melanura) perched on a branch in the understorey. Tiritiri Matangi Island, Auckland, New Zealand, July.

David Tipling / Blue-faced Honeyeater (Entomyzon cyanotis) captive from New Guinea and Australia.