Kiwi egg

I attended a talk by a man who is involved in Project Nest Egg. He talked about the work being done to increase the population of Kiwi in the wild.  Their numbers have dwindled from predation by stoats, ferrets, weasels, rats and feral cats. They are at their most vulnerable as chicks so the eggs are removed from the nest about a week before hatching and sent to Auckland Zoo or other hatcheries around New Zealand to be looked after until the chicks can be released in to a predator free area (island or predator fenced sanctuary) until they are about 3 years old (before they start breeding). The older birds can fend for themselves with their very strong legs and feet. The three year olds are returned to the area they came from. 
Facts about Kiwis.  They are about the size of a  large chicken.  The female is much bigger than the male.  She lays up to 2 eggs about 2 weeks apart and the male incubates them.  Once the chick hatches it looks after itself.  They mate for life and may have two to three broods a season. Although the female has nothing to do with the incubation she stays in the area and the male and female meet up at night when they are both feeding (They are nocturnal). Incubation is about 70 days. Kiwi live to about 50 years old.