After an incubation period of approximately 25 days, the fledglings hatch out of the eggs; in another 32 days they leave the nest, spreading their wings and learning to fly.
雌鳥進巢孵蛋，大約廿五天後雛鳥破殼而出；再過卅二天，雛鳥離巢，展翅學飛。