This is a fable about two roosters who lived in the same farm yard but could not bear the sight of one another. I narrated this fable and you can find it on the link below The Fighting Roosters & The Eagle.
The moral lesson of the fable is that "Pride goes before a fall".
It shows that you should not boast or become conceited if you happen to enjoy a moment of success, because your demise might actually be nearby.
Taking it one step further the moral of the fable could be that "A wise, and a generous enemy will make a modest use of a victory because fortune is variable."