A little blue penguin found lethargic and emaciated at Moa Pt in Wellington has been returned to the wild after Wellington Zoo staff nursed it back to health.
The adult korora was moulting when it was found by a member of the public.
Once a year, little blues moult to replace any worn out feathers. Over two to three weeks they lose their waterproofing and are unable to swim and hunt for food, so they need to ensure they have enough body fat to last.
The emaciated penguin was taken to The Nest Te Kohanga, Wellington Zoo's native wildlife and animal hospital.
"Through quality food and fluids, we were able to build up the bird's body condition so it was able to complete its moult and be ready for release back to the wild," senior veterinarian Dr Baukje Lenting said.