.The principle of the nest is that the birds go in the nest and sit onto the special matt(Astroturf mostly)to lay the egg.
.This matt is having a slope towards the eggbelt so goes down,because of the fact the egg has to roll away out of the nest onto the egg belt.
.Nests in the market often have a moving floor as an expel system to have no birds inthe nest during the night.Our nest has however a moving back wall as the expel system,this is a more safe system.
.Good light and no shadow is important.
.The width of the slatted floors important.