How to use the Egg Chart
If you are new to the hobby you may not have used a 18 day egg chart before. Look at the date when the egg was laid. The number directly below on the next line is the normal hatching date for that budgerigar egg.
Remember some hens will not sit the eggs until the second egg has been laid.
Do you use Dummy Eggs
Plastic budgerigar eggs are available to purchase and can be used in number ways. Replacing eggs taken from the hen to put under a foster pair. Sometimes l will remove the first egg and replace with a plastic egg only putting the first egg back when the second egg has been laid. By doing this you should have two eggs hatching on the same date.
Plastic eggs retain heat and can keep surrounding egg warm should the hen leave the eggs for food.This is useful in the colder times if birdroom is not heated.
If l have had eggs smashed l will give the birds a plastic egg to knock about and if l hear this occurring then l will use a mustard egg to give the offender a little lesson.
Plastic are normally slightly larger and can prevent the hen sitting to tight on newly born chicks.