Hello,
I have a new problem (they just never ends

)
When my cockerel started crowing maybe around 2 month ago, it sounded weird and short. After a week or two though, he started crowing properly, and he kept doing that everyday until yesterday.
Yesterday, he did the same move he always does, but the voice that came out was very short and sounded like he is having trouble making the voice. After that, in the same day, he drank water and ate and rested for few hours, then crowed properly. I didn't see him doing anything else really.
Now though, in the morning he crowed just like he did when he was small. I am not sure what's wrong with him.
Also, long ago, around 3 months ago or so, we bought two chickens, from a shop that slaughters chickens (most of our chickens are from there, as he allows us to pick then he slaughters, but we ask for them alive, and before this, they were all good), and the shop said one of them was a rooster, and he said it's the brown one (one is brown and one is black wich turns blue with the sun sometimes), and later we started getting more eggs, but we never saw it fighting with our existing rooster much, but rather the other rooster would fight with both equally and not too strongly, which it does to all new chickens. We thought the shop was wrong and both are females, because the chickens we bought as baby chicks, crowed at around 3 weeks old, and this guy is quite big since we bought him but isn't crowing at all.
I noticed a weird thing though. Both of these new chickens are all making the sounds of baby chicks even though they are much bigger, and we are not sure what's happening. Today, that brown one crowed for the first time, after staying with us for 3 months and he was not so small when we bought him.