Vehicles, feral cats, and habitat shrinkage all have conspired against the nēnē, the Hawaiian goose, but conservation efforts nevertheless have been making positve strides in population growth for Hawai'i's state bird. So much so, in fact, that Interior Secretary David Bernhardt traveled to Hawai'i on Sunday to announce that the nēnē can safely be "downlisted" to threatened from endangered under the Endangered Species Act.
For six decades conservation efforts involving state, federal, local, and non-governmental organizations have been focused on boosting the nēnē's population. There has been a captive breeding program, habitat restoration, and on-the-ground management strategies employed to move the goose towards recovery.
https://www.nationalparkstraveler.org/2019/12/plight-nene-improving-its-downlisted-endangered-threatened