After reading the "commercial" chicken comment, I must agree it is inappropriate for the BYC site. The name says it all. We are primarily hobbiests with a passion for 'wacky' birds who live in everything from Chicken McMansions to recycled pallets. We are a support group for chickoholics, not a collective farm group who focus primarily on large production.
I have over fifty chickens, far to many to give names to but I am not immune to their individual personalities. Each one gets individualized care when needed. I have lost some to illnesses I knew nothing about, and others to predators I thought they were protected from. BYC forums have given me the knowledge and encouragement to overcome these tragedies. And yes, loss of life no matter how small, is a tragedy, particularly when it could have been avoided. BYC members have helped me tremendously, even though they never knew I was online. BYC is all about the generous sharing of knowledge, kindness, and support!
By the way, I have a large fan on a stand that connects to a garden hose (bought at Costco a few years back). The coop is only 6x8 and this may not work for larger one, but it has successfully cooled the birds. FYI, the area surrounding the door (I leave the door wide open) does get wet, but the end result is worth it. Aiming it at a ventilation window (open of course) is another option. Wind and water really works!