it's like i said, the babies are picked up to go to egg duty a bit later than the first males are maturing and there's a bit of viable going on
i'm almost certain this is the whole story, auto-fertilisation is way too unlikely to be sufficient to explain the number of times i've seen little red dots in my egg yolks
"The vast majority (87 percent) of eggs produced in the United States are unfertilized table eggs. These eggs are produced for consumption and are what you will find sold at the grocery store. Conversely, only 13 percent of eggs are fertilized, or hatching eggs, which are used for producing chickens.#
https://www.usda.gov/media/blog/2020/04/14/egg-stat-ic-about-eggs
