chicks gender sexing

I have 2 Easter Eggers in my mini flock. They’re about 7 weeks old (I know it’s early), this one is substantially larger than the other one and its coloring is different. The hatchery I bought them from only guarantees 90% are sexed correctly. Is it possible this one is a rooster? Or do I have...

First time raising chicks. My friend hatched 2 chicks with her class and offered them to us, knowing I’ve been interested for years. Then, because I was afraid one would be a rooster (we’re not allowed roosters) and I didn’t want a lonely house chicken, we went and got 4 more from someone...

Can’t tell if the Olive Egger (black chick) is a Male or Female. Turned 5 weeks yesterday. We have a cuckoo maran rooster that is 5 weeks and have a bright red comb about 2x larger and has his waddle coming in 1/2 centimeter down. Compared to him, this olive egger seems like a pullet but...