Is this wing baldness normal on 1 and slow tail feather growth. I have 3 EE (I bought ameraucanas🙃) and 1 speckled Sussex

[Beard4]

The EE (Holly) to the far right; both sides of her wings have that bald spot on the “ball”of her wing. Her tail feathers aren’t growing in as fast as the others (we think they are all 3 weeks old) she has had runny stools but is also our stressful yet playful chick. She runs backwards at times and pounces the other chicks

Another view she is the bottom EE but above the Sussex

Meet Holly, Poppy, Daisy and Clover (Specked Sussex)

Thanks for the info

 

[Wyorp Rock]

Cute chicks!
They look fine to me. Chicks grow and feather in at different rates. If they are eating/drinking/active...sounds all good to me