Panting at night in new coop

[Rob Tof]

Put a fan in there to move air a bit my help.

 

[azygous]

To answer your question, yes, panting can also be a sign of stress as well as from feeling hot.

As to why the others are not panting, just as with people, individuals birds will react to warm conditions in varying degrees of discomfort.

 

[timelord1020]

Thank you everyone for the help