I originally thought that you weren't allowed a TOTAL of more than 4 (5 if breeding) eggs & hatchlings. But that is incorrect.
What it does is if you are trying to take an egg from the cave, it checks to see if you have 4 or more hatchlings. If you do, you can't have the egg. If you pass that check, it checks to see if you have 4 or more eggs. If you do, you can't have the egg. If you pass both of those check independently, then you do get the egg. It never totals up how many hatchings & eggs you have together.
If you are breeding, the checks are done the same way, except it uses 5 as the number instead of 4. If you fail the check, the egg is apparently auto-abandoned, and you'll have to wait a whole week until you can breed those 2 dragons again.
So, getting 4 eggs all at once is ineffective. They all become hatchlings at the same time, so you have to wait until they are adults to get more eggs. Get 1 or 2 a day, and you'll have a constant rotation where you can add new eggs.
Cool thanks for the info!
I just tired to breed my two silvers that I've been trying to get for weeks...And they won't go near each other!!!!
That's jut not right!