Travel1 min ago
ok maybe I'm stupid (quiet!) but..
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For more on marking an answer as the "Best Answer", please visit our FAQ.Rest easy mycatis... here's an excerpt from an article written by a woman Finch expert:
"I'd like to take a moment to talk about eggs. Finch eggs to be more exact although most of this information can be applied to all bird eggs. I receive questions about eggs in general as well as questions about finch behavior regarding their eggs frequently. I'd like to dispel some of the myths and clear up some of the facts here.
For starters, all shelled (This includes birds and reptiles) eggs are fertilized inside the females' body. If you want to know how they are fertilized please go to my 'Finch Sex - Mating' article. I don't know where the idea started that the female laid the eggs then the male comes over to fertilize them. That's what fish do, and we don't have fish, we have finches.
To put a little common sense into the mix lets think about an eggshell; it's quite hard. It's not air tight, but there is still no way any sperm is going to get though that shell. The egg must be fertilized before the shell is formed and the shell is formed as soon as the eggs surface touches the open air.
The shell acts as a protective layer around the growing embryo until it's ready to hatch. The protection that the shell provides to the tiny growing finch is really quite amazing, It's strong and secure and helps to keep the embryo warm while the parents are away."
Here's the article in its entirety:
http://www.finchniche.com/f-eggs.mgi