Kakapo Recovery programme manager Deidre Vercoe was surprised to hear of the kakapo's inclusion.
"Ugly is the last word I would think of," she said.
Ms Vercoe said people had overwhelmingly positive reactions when they first met a kakapo.
"They've just got an amazing face and a curious little nature about them."
While Ms Vercoe disagreed with the "ugly" tag, she was supportive of the promotion of kakapo.
Only 124 of the highly endangered parrots are left, most on two predator-free islands near the bottom of the South Island.
"For the profile of kakapo it's really important that they're well known nationally and internationally," said Ms Vercoe.
Among the notable figures supportive of the "ugly animal" campaign is English comedian and actor Stephen Fry, who met Sirocco the Kakapo, DoC's "official spokesbird for conservation", in 2009 and described the bird as having a "Victorian gentleman's face".
On the web:
uglyanimalsoc.com