It has been crowned bird of the year, but there are fears a controversial monorail project could further endanger the Mohua.
Otherwise known as the yellowhead, it has topped Forest and Bird's annual poll to find New Zealand's bird of the year.
Green Party co-leader Metiria Turei used the tagline "vote Mohua, not monorail", to get people to vote for it.
She says its habitat needs to be protected, as it's already endangered.
"The whole issue of protecting birds in order that you have to protect their habitat, and to protect their habitat you have to prevent the destruction of it.
"And the monorail will destroy a significant proportion of the Mohua's habitat."
Conservation Minister Nick Smith is visiting key sites along the monorail route today.