I don't think chickens are like children at all. I think they are like chickens...and who would want to change that, really? My chickens are never bored, they free range at will, had an acre to live on and the surrounding fields to stretch into, plenty of food, variety of forage.
Guess what? They are still noisy sometimes...after laying an egg, settling a roost dispute, when a hawk flies over, etc. This is called communication and they should be allowed to express themselves without having to cluck sotto voce because they live where chickens should not live for fear of the neighbor's displeasure.
I get it that some of you live in town and you don't want to disturb the neighbors, but you did choose a pet that has no volume control...what in the heck did you expect? Tiny squawk collars to suppress the noise?
These are farm animals.
The reason you aren't getting many solutions offered is because there are many of us that accept the realities of raising chickens, don't try to adapt them to city life so we can have a few eggs without the side effects of noise and we don't see any merit in it when it isn't necessary....our solutions were viable.
You don't need to own chickens to enjoy fresh eggs...there are sources out there. You don't need to suppress chicken instinct and natural behavior to suit your life...your life doesn't hinge on this happening. It's just a whim, a hobby, a new fad. Solutions are generally not needed when chickens stay in the country and city things stay in the city. The problem is self-inflicted and is just as easily solved by not inflicting it upon oneself.
I know that is not a popular view, but there it is. I'm sorry some of us were less than helpful but it is a recurring subject on this forum that has a very obvious, complete solution....don't have chickens in the city.