Peacock still not calling

[Bird Ranger]

Recently my neighbours peacocks have started calling but my peacock has been surprisingly quiet. Last year he was in the habit of returning calls to my neighbours peacocks at the start of season. He is healthy and eating well. Is there some thing to worry about? Or is it fine?
Could please someone explain this behaviour difference to me as i ve been rather curious some past days as i love to hear them call.

 

[KsKingBee]

As soon as the hormones kick in he will not shut up.

 

[Dany12]

... and when the wind will come from the south !

 

[Bird Ranger]

I heard some copulation calls from the male in the morning but that real scream like sound of help.!!help!! Is missing. He displays but only in the morning. Does it have to do something with increase in temp and rains that will bring the real show?