Doug Perrine / Ohia lehua tree (Metrosideros polymorpha) on edge of caldera with lava lake, Halemaumau Crater, Kilauea Volcano, Hawaii Volcanoes National Park, Hawaii, March 2017.

Doug Perrine / Ohia lehua tree (Metrosideros polymorpha) with garlands hung in it. At edge of caldera with lava lake, Halemaumau Crater, Kilauea Volcano, Hawaii Volcanoes National Park, Hawaii, March 2017.

Julian Hume / View of Diamond Crater, Oahu, around 1000 years ago. King Kong finch (Chloridops regiskongi) flying past an Oahu palmcreeper (Ciridops sp) perched. Extinct 1892. Directly behind, an O'ahu O'o (Moho ap...

Julian Hume / Hawai'i O'o (Moho nobilis) (Extinct 1902) on a flowering Ohia (Metrosideros polymorpha).

Julian Hume / Illustration of extinct birds Kioea (Chaetoptila angustipluma) (Extinct 1859) above, with Hawai'i O'o (Moho nobilis) (Extinct 1902) (below) on a flowering Ohia (Metrosideros polymorpha)

Gerrit Vyn / Native Hawaiian forest with Ohia trees (Metrosideros polymorpha) Volcano National Park, Hawaii. April.

Gerrit Vyn / Flowering Ohia (Metrosideros polymorpha) plant sprouting through lava rock. This species can grow as a shrub, bush or towering tree. Volcano National Park, Hawaii. April.

Tim Fitzharris / Forest canopy of O'hia trees showing crown shyness, Lava Tree State Park, Hawaii

Rolf Nussbaumer / Male Anianiau (Hemignathus parvus) feeding on blossom of 'Ohi'a lehua tree (Metrosideros polymorpha) Alakai Swamp, Kauai, Hawaii, USA. August 1997

Rolf Nussbaumer / Apapane (Himatione sanguinea) feeding on blossom of 'Ohi'a lehua tree (Metrosideros polymorpha) , Alakai Swamp, Kauai, Hawaii, USA. August 1997

Roland Seitre / Ohi'a Lehua (Metrosideros polymorpha) flowering in lava, Volcanoes National Park, Big Island, Hawaii

Roland Seitre / Ohi'a Lehua (Metrosideros polymorpha) flowering, Volcanoes National Park, Big Island, Hawaii