This isn't a great photo but there are only three species in this endemic New Zealand genus. I have also uploaded photos of the other two species - the Whitehead and the Brown Creeper - although for those I have photos of living animals (they are in the NZ Wildlife gallery).
Nobody has ever been sure of what the Mohoua are most closely related to, but currently I think they are linked to the whistlers.
Wildlife? I think taxidermy specimens are uploaded into the "Other" galleries of respective countries, if the place holding them has not an own gallery....