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

Greg Oakley / Yellow-faced Honeyeater (Lichenostomus chrysops), Victoria, Australia

Greg Oakley / Blue-faced Honeyeater (Entomyzon cyanotis) juvenile, Victoria, Australia

Greg Oakley / Yellow-tufted Honeyeater (Lichenostomus melanops), Victoria, Australia

Greg Oakley / White-plumed Honeyeater (Lichenostomus penicillatus), Victoria, Australia

Greg Oakley / Brown-headed Honeyeater (Melithreptus brevirostris) group, Victoria, Australia

Jan Wegener / Brown-headed Honeyeater (Melithreptus brevirostris) calling, Victoria, Australia

Jan Wegener / Lewin's Honeyeater (Meliphaga lewinii), Victoria, Australia

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

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

Steven David Miller / Blue-faced honeyeater (Entomyzon cyanotis) perched on bark. Nitmiluk National Park, Northern Territory, Australia.