I do not think it is the same song. There is a slight difference. When at my friends in MO my camper was close to the coop and run. I picked up on a vocabulary of clucks, chirps, and very loud to soft noises. The eggs song is diffenitly an anounsment song, wareas the
where are you is a little lower down in, I think pitch, can be heard at longer distances. I do not know the terms used in music.
Some of you are very heavily into music and have a good ear, when you watch chicken theater, lesson as if it is chicken opera. Volume, speed (tempo?), deep or high (soprano or baritone), and soft and hard clucking. I can tell the warning
"danger over head! Get to cover" call, I have a goodie call by rooster or mother hen, mother hen,
come here call ,
I laid an egg call. And I was trying to figure out the other ones. A musician would have an easer time at it. This is the result of too much time, and is fun. A free range flock sounds different, they are quieter and softer, survivel of not attracting predictors. When crowded pens I can't tell any one from another, I get the feeling they are all just complaining. We all know the angry get away from me growel, or squak of a broody. At the Fair I Heard from individuals the
displeasure Screech
When near to the cage. Clearly few chickens wanted to be there. The Silkies were the quietest. The Roosters! Well we know they have a lot to say with so many girls and competition around.
I think, but not to that point yet, that the older girls have the best chicken pronunciation, Paul's girls are over 2, with only 3 pullets. I need a great deal more time, and maybe some of those high Tec stuff the use when working with sounds.

It is a good pointless "study" the government gives grants to researchers that need to do research. You could spend a lots of tax $$$$$$ and months to yrs of time on. You also would need chickens living in all kinds of conditions.

That is what a group of us should do! The best composer writes a convincing proposal, we convenes a researcher at ASU to join us (making it legit), quite our day jobs and study chicken language. Of course we would have to travel to France, Italy, and other places, to verify that the language is the same. After all the French chicken may speak French Chicken and not understand the English chicken.
{lodgings in France}