Hello! I'm fairly new to chicks. I have about 24 right now(a mix of buff orphingtons, black australorps, and 3 wyndottes.) Chicks have clean water, appropriate temperature, food, etc. and are all about the same size. Could anyone tell me why the last two nights I've lost 2 buffs each night? Everyone is happy and healthy when I go to bed and by 7 o'clock there's been 2 dead ones. Any input would be amazing!