Each nest lays 5-7 eggs, and occasionally 8 eggs. Eggs are white with tiny purple-gray or purple-brown spots. The size of an egg is14-18 mm×110.5-13 mm, with an average of15 mm×12.4 mm. The hatching is completed by the female bird alone. Late bird. Parents brood together, and the nesting period is 1 1- 12 days.