@RobinS1217 One more thing on RIRs. Over the next few weeks they'll likely get wing feathers that are mottled browns, white, red, black- kind of cool looking. That's totally normal for the breed.
They'll end up a solid, pretty dark, rusty red (with a few black or lighter feathers on wings and tails) but their early feathers can vary a lot.
Finally, you may need some patience between now and 6-7 weeks from now. That's when you'll know for sure you got all pullets. RIRs from hatcheries can get combs pretty early so it may may you second guess but you're on the right site for questions, photos of similar chicks, etc!Th