Egg Mistake

[Yellowman]

Having messed up the dates of when 2 eggs were due to hatch i now have a nest with 4 eggs in it as the first 2 were obviously clear.....should i guess at taking the 2 older ones away or just leave the lot in there ?

[REDCHEQHEN]

I use a torch to look through the egg - when they are about 5 days old you can see the veins forming if the eggs are full

Eggs that aren't full can be seen through (I use a darkened room)

If you are unsure ask someone local to look