Diagram of Duck Egg development Day 12
![Diagram of the development of a duck egg day twelve natural history illustration by Lizzie Harper](https://lizzieharper.co.uk/wp-content/uploads/2018/04/duck-egg-development-day-12-500x346.jpg)
Stylized diagram of the development of a duck egg from being laid until after hatching day twelve feathers start to show eye covered with lid claws formed
Stylized diagram of the development of a duck egg from being laid until after hatching day twelve feathers start to show eye covered with lid claws formed