The flightless invisible rail is endemic to the island.

The naturalist Alfred Russel Wallace visited Halmahera, as described in his 1869 book The Malay Archipelago.
He considered the standardwing bird of paradise, Semioptera wallacei, to be his greatest prize.
It was in February 1858, on island of Ternate, between the bouts of fever, that a suffering Wallace came to the idea of the natural selection via the survival of the fittest.
Wallace wrote his ideas during the next couple of days, and sent the historical letter to Darwin.
The flightless invisible rail is endemic to the island.
The naturalist Alfred Russel Wallace visited Halmahera, as described in his 1869 book The Malay Archipelago. He considered the standardwing bird of paradise, Semioptera wallacei, to be his greatest prize. It was in February 1858, on island of Ternate, between the bouts of fever, that a suffering Wallace came to the idea of the natural selection via the survival of the fittest. Wallace wrote his ideas during the next couple of days, and sent the historical letter to Darwin.
Halmahera