i have a black australorp roo with some americana hens if i hatch there eggs what wiil i get in color wise and will the future hens lay blue and green eggs
Olive Eggers are a blue/green layer x DARK brown layer. They wouldn't be olive eggers,
Just Easter Eggers.
Because nearly but not all Easter Eggers from hatcheries are duckwing based, your offspring will be mostly black with silver or gold tickling on the neck and possibly the breast. They'll lay green and some brown eggs.