What I was witnessing was not an unprovoked attack, but a belligerent courtship display.

Suddenly it folds back its wings and is plummeting in a fearless courtship display before soaring up again.

It was an excellent example of a coloration mark which served a purely advertising purpose; apparently it was part of a courtship display.

His attempts to impress the female ducks with his plumage and courtship displays have failed.

But, irrespective of their status, males continue to participate in communal courtship displays throughout the winter.

These spines are more prominent in males, who can raise them during territorial or courtship displays.

It explains that males gather annually for courtship displays at traditional lek sites, where they jump up and down, and call frantically.

That is, either oxt or oxtr1 mutation in males decreased the number of courtship displays toward novel females, but not toward familiar females.