“The Laysan Island population of ulūlu went extinct in the early 1900s after rabbits and other introduced animals removed the island’s vegetation.
Invasive animals were removed from Laysan in the 1920s, and the natural vegetation was allowed to recover.
Over 10 years ago, conservationists reintroduced dozens of ulūlu to the restored island from Nīhoa Island to create a second population of the species and help reduce the risk of extinction.
Experts say hundreds of ulūlu live on Laysan Island today.”
From Hawaiʻi Public Radio.