To formula to figure the odds of completely missing is (1 - p)^n where p is the odds of hitting per egg and n is the number of eggs. For example for a 6 egg clutch from het X het (i.e. p = 1 in 4 or 0.25 and n = 6) the odds of not producing any albinos is (1 - 0.25)^6 = 17.8% or about 1 in 5.6. This could help you gage how unlucky you would have to be to miss or if something else is going on like one of the parents not being a het or parthenogenesis.

Here are the odds of missing per clutch size for het X het:



eggs chance missing
1 75.00%
2 56.25%
3 42.19%
4 31.64%
5 23.73%
6 17.80%
7 13.35%
8 10.01%
9 7.51%
10 5.63%
11 4.22%
12 3.17%
13 2.38%
14 1.78%
15 1.34%
16 1.00%


Here are the odds of missing from homozygous X het:

eggs chance missing
1 50.00%
2 25.00%
3 12.50%
4 6.25%
5 3.13%
6 1.56%
7 0.78%