How long does it take for kingfishers to lay eggs and hatch birds?

Kingfisher can use its thick beak to build its nest on the earth cliff or in the tunnel of Tianba. The bottom of the cave is generally not paved, and the eggs are directly laid on the nest ground. Each nest lays 6-7 eggs. The egg is pure white, bright and slightly spotted, with a size of about 28 mm× 18 mm, with 1 ~ 2 nests every year; The incubation period is about 2 1 day. Males and females hatch eggs together, but only females feed their chicks. The breeding season of kingfishers in southern China is from April to July every year.