Patrica writes...

Heya, was reading through the Garg Science section, when I came upon this thought, correct anything I say if its wrong. First I'll state what I found, then I'll sum it up with what I came up with.

Females can conceive every 20 years. It takes 6 months for the eggs to develop and be layed. Then it takes 10 years for the eggs to hatch.

Going by this, there would be eggs hatching and eggs laid every ten years. So, in the rookery, every ten years, on the Equinox (I forgot spring or fall... most likely spring) there would be eggs hatching, AND eggs being laid.

So, basically, every 10 years, a different set of females would be conceiving. It'd go every-other-10-years.

Example: Female A conceives and lays an egg. Female B hatches from that egg, 10 years later. At this same time, Female C would lay an egg. 20 years later, Female B conceives and lays an egg. Females A and B are on the same cycle, while Female C is on a cycle set off by 10 years.

Or, to put it another way:
Female A lays an egg. Female B hatches 10 years later. Female A lays an egg 10 years later. Female B lays an egg 10 years later.

Basically: Mother and Daughter alternate on the 10 years. If Daughter has a child, then that child, Granddaughter, would be on the same cycle as Mother. If Granddaughter has a child, Great-Granddaughter would be on the same cycle as Daughter, and so on.

I just looked at how many times I tried to simplify what I was saying... a lot!

I hope I got whatever point I had across.

Here's a note: It's almost midnight here, so if things don't line up well, let me know :).