Plz Help chicks are dying?

[umairkazmi]

I have around 10 chicks. 5 are Rohde Osland red and the rest are delaware. They are 2 weeks old. I let them roam around outside bcoz its not that cold here im my country but one day one of my chick started showing these behaviour.
Dozing
Not eating anything
Moving like a sloth
And the wings are like they are free from body
I will apperiate the help from you.
Now my 4 chicks are showing this behaviour i'm a little worried. Cause its my first experience.

 

[3riverschick]

It sounds like they are overheated. how hot is your brooder ? do you have the heat just at one end of the brooder so they can get away from it if they want?
Signs of overheating would be listlessness, laying on their tummies, holding their wings out to the side ,
panting.
Best,
Karen