I searched all over for this topic and couldn't find anything here or on Google, so forgive me if I am being repetitive! Our (approx.) 17-18 week old rooster mounted one of the hens of the same age today, something he's never done before. I witnessed it out our kitchen window and I wondered if this is a sign of an egg coming really soon. Also, she (out of all 3 hens) has been looker a little "wider" than the others -- possible pelvic spreading? Their combs aren't as bright as the rooster's but I thought perhaps there might be a correlation between his mounting. Not long after this happened I went out to feed/water them and put a fake egg looking thing (those little kitchen timers than are supposed to look like an egg!) Just in case those signs pointed towards an egg soon! Anyone able to shed some light of this subject?