Hatch day is almost upon you eggies, get those eggteeth ready!!Day 17, you guys and gals!
"The embryo's renal system produces urates. The beak, now under the right wing, points to the air cell. The albumen is now fully absorbed"
Article 'Development of a Chicken Embryo Day by Day' https://www.backyardchickens.com/articles/development-of-a-chicken-embryo-day-by-day.72537/