Chickens not making sounds

[luckylefty]

My chickens are going on 14 weeks old and used to make little peeping noises all of the time. In the past 2-3 weeks, they stopped peeping as often. Once or twice I heard sounds resembling a cluck which I saw as great progress.

However, in the past week and a half, they have stopped making sounds at all. Is this cause for concern. I was worried that they were not drinking enough water and perhaps this was causing it, but now I am starting to think it may be something more. Just wondering if this is normal, caused by hot weather, etc. Any advice would be much appreciated!

 

[sheaviance1]

Mine went through a silent stage after their voices changed. Hubby seemed to think that they were scared of their own voice because they would cluck and then look around them like they were afraid that something was coming after them.