As Richard was working in the backyard today he couldn't resist the temptation to get the ladder and take another peek into the nestbox. He didn't expect to see ANOTHER egg - but yes, now there are four.
That immediately sent him to the computer to see what he could find here
Apparently Crimson Rosellas breed mostly between September and January. The nest is a tree hollow, located high in a tree, and lined with wood shavings and dust. The female alone incubates the four to eight, normally five, white eggs, but both sexes care for the young. The chicks hatch after about 20 days and, although they leave the nest after about 35 days, they remain dependent on their parents for a further 35 days.