chickens die comb turning blue
It would be difficult to know what is was without more details. If they were chicks a day or two old, they may not have been properly cared for in transfer. They can become dehydrated, overcrowded, or cold, and that stress can affect their survival. If they were older, then it could have been coccidiosis or some other infectious disease. Cyanosis or blueness of the comb can be from the dying process, but mostly I have seen pale combs. Blue comb is a disease affecting hen at laying age, and is rare nowadays. Here is some reading about it: http://www.thepoultrysite.com/diseaseinfo/118/pullet-disease-bluecomb-avian-monocytosis/
From the update I got from him few hours ago, they have lice all over them. And that tells there old coop is dirty and unhyginic for them to thrive. He returned the remaining ones that survived. He's shocked and thinking of giving up keeoibg chickens cos this is his first time.
He didn't listen to me. I told him to start with a small number about 5 or 10. To learn how to cate for them.
Sorry about his flock. I think it is good for people to start with a few new chicks if possible, and raise them their own way in a clean environment with good nutrition. That way, you know what they have been exposed to, and have less a chance of bringing in disease and parasites. Then go from there and raise your own chicks each year.
Am planning to raise cocks now. Already got a space for them.