3 week old chicks attacking each other!

[Counting chickens]

I have also read that chicks will peck other chicks that look different. So if you are going to get mixed breeds make sure you get 3 of each kind so a single breed doesn't stand out of place. The type of breed you get also matters. When I purchased my chicks I made sure they were all mellow breeds. Not that you can't have a bully mixed in. My brooder is about 3 x 8 and I had 40 chicks in it until they were about 4 weeks old, then I moved them to the coop. They got along fine.

Yep, first time I've had problems.
I thought I'd get cute and order a random mix of layers from McMurray
I've got 3 that I'm guessing are either polish or silkies... they have a poof on there head.
Other chicks peck at it b/c it's different.

 

[BulldogsandChickens]

Change**
My wife just said all the rain is going to be south of us.
However there is a cold front moving in.
I guess my question would be are they better off in cramped quarters, but warm and dry OR in the bigger enclosure in dirt and grass?

I am sorry for your loss.
I am raising my first batch of chicks in many years so I am by no means an expert. However, I have experienced loss with polish chicks due to heat issues. They definitely seem to need heat more than other breeds. I have a mixed flock with a few weeks age difference and the birds that do not need heat lay along the edge. It took a day or so for the rest of the birds to accept the remaining polish and not peck on her after I lost the other two. I brought her inside after cold night incident and gave her sugar water and warmed her up. I now have electrolytes from farm store on hand. Space is important. Dirt and grass is ok. Mine love wandering with me in the yard. Keeping them warm at night and access to clean water always have been key for my birds. Good luck! It’s amazing how quickly we get attached to our feathered friends.