Hello! We have 5 pullets and 3 hens....our pullets, esp the australorp just started laying in early August, and sound off with the egg song both before and after laying and sometimes just to make a racket. The hens, not so much. So my question is this, does the frequency and/or volume of the singing decrease over time or is it just a individual bird thing? I dont mind the singing at all, my neighbors might though, so wondering if I need to start putting care packages together to keep them happy. 
Thanks for all responses!

Thanks for all responses!