Dannevirke's Gallery of History has started a Givealittle page to help in its quest to get its stolen huia back.
The preserved bird was taken from the museum in July 2020 and the museum has been pleading for it to be given back.
One man was convicted of the theft and sentenced to 19 months in prison.
He has not come forward with information about who had the artefact in their possession.
The bird was one of a pair donated to the museum in 1990 from the descendants of the family who originally owned them.