Instead all males chased and butted the female.

In addition, males will chase each other across the boundary.

Once the spawning is done, the male will chase the female out of the nest and guard the eggs.

After the eggs are laid the male will chase the female away from the nest site since she would cannibalize upon the eggs.

The new resident male does not chase away subordinate invading males, but rather focuses of mating with females.

One male remains as the resident male and chases other males away.

While spawning, males are territorial and would chase other banded darters.

If a bachelor male should be passing through a territorial male's region, the male will chase the offender out of his territory.

The males did not take kindly to such advances and chased him from the forest.

When predators (usually other raptors) fly nearby, the male will sometimes chase them away from the nest if they feel it is necessary.