With the new residence complete, incubation of the two to four eggs will take eleven to twelve days, and the young birds will leave the nest within nine to ten, and there are generally two clutches of eggs within each nesting season.
新居落成，抱孵蛋同樣需要十一、二天，蛋由二到四個不等，小鳥則九到十天即可離巢；生殖季中皆有繁殖二窩的現象。