I guess that would have been helpful information, wouldn't it? They'll be standard sized chicken eggs. I'm not sure what breeds I have. Got them from a friend who had a mink move into her coop and she asked me to take them since she'd lost 3 in 4 days. I have 7 red ones, 3 black ones, and two mutts of my own. One that I've probably incorrectly called an araucana (lays blue eggs and I know for sure came from an aracauna hen, but I think the rooster was a Blue Laced Red Wyandotte if I remember right). The other is also of questionable heritage. Doesn't matter to me. I'm not selling or showing them. I just like fresh eggs and DH thinks we'll be getting fresh meat later this summer. We'll have to see about that... I don't know what my rooster is, either. BIG white one with red across his wings and back. Maybe old, too. His spurs are about 1 1/2" long. I don't know how long it takes for them to get spurs like that.