Three of the eggs have hatched into ducklings but unfortunately the other two didn't survive the hatching process.
The ducklings were put into a small warm enclosure with a group of mallard ducklings to keep them calm.
When they're about six weeks old the blue ducklings will go onto another enclosure, where they will be introduced to the outdoors, before being taken to a hardening-up facility in Turangi and then released into the wild specically areas of running water.
Helping boosting blue duck numbers was an important conservation effort for Nga Manu to be involved in especially as there are fewer than 3000 of the species remaining.
And the numbers could be boosted again soon as the female blue duck at Nga Manu has built a natural nest and laid some eggs.
Meanwhile the Kapiti Fly Fishing Club has donated $500 to Nga Manu towards live food.
Live food is given to a variety of species at Nga Manu such as blue duck, kiwi, tuatara, gecko and skink.
Nga Manu Nature Reserve manager Matu Booth said the donation was "awesome".
"As a group no one sees whio more than people who are into fly fishing.
"I was invited to give a talk to the club and listened to some great stories of whio being fearless in their environment.
"Fly fishers are really conscious about degradation of rivers and whio are really good indicators of the health of rivers.
"So this donation has a nice connect for them."