So in all my Googling for things birdish, I came across this website. I love the display of different eggs. To actually find the picture of this poster on the website, I scrolled down....down....down....and downer even more. This site had so much info about birds reproduction, it was astounding! I don't think they were able to answer the age old question though...about which came first. But any other questions you might have, they have answers for.