Three of the four tawaki are recovering well and are expected to return to the wild in the next two weeks.
Wedgie and Danny must remain at The Nest Te Kohanga until they regain their waterproofing.
The waterproofing assessment involves the birds swimming in a salt water pool for four to six hours a day under supervision. Their feathers are then assessed to monitor how waterproof they are.
Meanwhile, the remaining penguin, Alex, is still recovering from an injured jaw. The wound around Alex's mouth is healing well, but Alex's beak started to scissor and cross over the tip, the spokeperson said.
Carers are correcting his beak.
"The outcome for the four tawaki is positive at this stage and we really hope that we can release all four of them back to the wild. Returning sea birds back to the wild is an important part of what we do at The Next Te Kohanga as it contributes to the ongoing conservation efforts of nationally endangered species, like the tawaki," the spokesperson said.
"During this time of the year we see a lot of penguins coming through to The Nest Te Kōhanga. We ask that the community keeps their dogs on a lead while out along the coastline to help protect our native sea birds that may be nesting in the area."