Yes. There are a few reasons to why they might fight:
If you have two females and a male together in a cage/aviary, the females may fight over the male.
Or, if two female budgies are preparing to lay eggs and there is only one nestbox available, they may fight each other for it.
The females choose mates. (Apex)
the males compete to fertilize
As with most birds the males are brightly colored to attract the females.
The scientist could conclude that the females choose mates.
This is called, sexual selection.
The Parlement of Fowles where many birds choose their mates
Females are generally more selective when choosing a mate because many, not all choose their mates based on solid traits and features such as job stability, education, and family background.
This is general sexual selection of males by females.
The females choose mates - apex
Sexual selection occurs, where females choose mates based on specific traits that may indicate genetic quality and fitness. In this case, the trait of building strong nests and helping care for young is being selected for in male birds by females, as it increases the chances of their offspring's survival. This selection process helps ensure that males with these advantageous traits pass them on to future generations.
This is called, sexual selection.
This is called, sexual selection.