Help! Black/dark red comb and lethargic roosters

[Myrshine]

What can cause this? They are lethargic, all have dark combs and wattles, almost black looking.

 

[Myrshine]

They are also very thin as well despite having 24/7 feed and water..

 

[GermanKennhuhn]

Could you post some pictures? How hot is it where you are?

 

[Myrshine]

Could you post some pictures? How hot is it where you are?

Not hot, around 60 or so. I’ll try to get some pics in a little bit