Need help sexing baby chicks

[Jl neighborhood flock]

Well, the chicks have grown older, feathers are coming in and I’m really excited! They’re energetic and curios, pecking at their soundings, so that tells me they’re growing up perfectly healthy and happy! However, I do need help sexing them. I’ve suspected that the yellow one is a roo, it was huge at birth, and the way its wings are coming in I’m thinking it’s a roo. Need your input below. I have pics posted below.
You’re help is greatly appreciated

 

[Lacy Duckwing]

Adorable chicks! It's typically best to wait until they're six weeks and older to start the guessing game, as they'll have more telltale signs. Though it's not always the case with all breeds, the feather growth theory is something you can try looking at. That is, pullets' feathers grow in faster than cockerels. Again, it's not always accurate and you'll probably want to double check back here when they're older before rehoming extra cockerels based off that theory.

 

[User690263]

Well, the chicks have grown older, feathers are coming in and I’m really excited! They’re energetic and curios, pecking at their soundings, so that tells me they’re growing up perfectly healthy and happy! However, I do need help sexing them. I’ve suspected that the yellow one is a roo, it was huge at birth, and the way its wings are coming in I’m thinking it’s a roo. Need your input below. I have pics posted below.
You’re help is greatly appreciated View attachment 4038495

As @Lacy Duckwing said, it's a bit too early to tell yet. If I had to guess, I'd say the brown stuffed one is a cockerel