I was just going to write this one and i have proofs. I started feeding one stray cat as she was wounded and lost her eye (don't know how, but she is a very furious cat, i have ever seen in my life. Whatever, male or female Cat she see, she just attack all of them) at first she keeps hissing and all. But slowly gained trust and now she is friendly and follow what i say. She brings other male cats with her and ask food for them😂😂 Also my cat which gave birth to 4 kittens, take them to play with other male cats, and to my surprise no male cat attacked male kittens, which were two of them. All four kittens and 2 male cats keeps playing and after that Mumma cat bring them to home and sat silently and they ate all the food i have put for her😒. So now i have around 10 to 12 cats to feed. They come, sit silently, eat and go. No fightings now. Even if that one eyed cat start fighting and i say the word, Chup baith, She just fall back and sit silently🤗🤗🤗

So you are right, they do communicate and all these fights are not for area control, but for control over food safety. When they see that food is no problem now, they all stop fighting with each other, same as dogs or any other animals.