How many days do they need to hatch eggs

The Belled Bird's hatching requires about 15 days.There are many types of birds, and their calls are very good. They are common cages.It generally starts from March, and then finds the right place for nests. Its nest is cup -shaped, and the materials are generally grass leaves, and fine artemisia stalks are also used.Its breeding period is from May to July, and 4-5 eggs can be produced at a time. After the birds are hatched, it will take a period of time to feed to leave the nest.