Usually clutches of three to eight white eggs are laid. Both sexes incubate the eggs for 13 to 15 days. The chicks fledge between 21 to 30 days after hatching.

How many eggs lay Java sparrows?

These birds may lay up to 8 eggs in a nest which will usually be in a tree hollow or somewhere on the outside of buildings. Incubation of these eggs starts just after the last one has been laid, with eggs hatching after just 12 to 15 days.

How many times Java finches lay eggs in a year?

Limit birds to 3 clutches per season, with at least a 6 month break afterward.