Grit confusion and bald spots

[amospfos]

I have nine chicks 4 GLW,2Amarcauna,2Brahmas,and 1 rir.
They are about 2 months old. I noticed 1 GL has feathers missing on her head . I thought that it might be just because she is loosing down but her skin feels rough. Now i have also notice the RIR Has a bald sopt as well.i wonder if they are being plucked? However, i have never seen it happen. So i made the cabbage pinata cause maybe they are bored? So no that they are getting more than crumble i put a plate of maybe 3tbsp of grit out. Is it normal for them to eat it all rite away? And if so should i put out more so they all get some?
I need help it hard being a new chicken mommy. I just want them to be happy and healthy.
Any advice would be appreciated. TY

 

[Yay Chicks!]

I would leave a dish of grit in with them and trust that they will take what they need since you are giving them food that they need "teeth" for.

Chicks can look a little rough as they get their feathers in. Are the bald spots totally bald? Or are the beginnings of feathers coming in? They can look a little pin-cushiony in spots.

 

[amospfos]

The GL has a pertty big spot,the RIR i just noticed today. Is there a way i can post pics to show

 

[Yay Chicks!]

Here's the tutorial for adding pictures: https://www.backyardchickens.com/a/image-and-video-tutorial#user_addimages1