The reason why waxing birds do not hatch eggs

Most of the waxing birds do not hatch eggs due to poor maternity, or the first egg delivery.This bird is generally built on the branches. The shape is mostly deep cup shape. The outer layer is hair, tender branches and soft roots, and the inner layers are cobweb and soft grass.Usually it can spawn 4-5 each time, eggs are blue, with spots on it.After a period of hatching, the chicks will come out of the shell, and then the bird will grow up until it can be foraged independently.