Because as in most species, the male wears the colors to attract a female mate. An example is the mallard duck. The male is beautiful color while the female is usually brown. Male peacocks have the plumage as well.
The male Kiwi had a call so females would come to its territory to mate
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The fictional cartoon character "Road Runner" created by Chuck Jones is male .
In many birds the males have more beautiful colors than females because the females don't need them. The males use them to scare off other males and to attract females. The females don't need them for anything.
In bird populations the male always is more colorful.
Male tui birds are typically larger and more colorful than females. Males have more prominent white throat tufts and more iridescent blue and green feathers on their bodies. Females are slightly smaller and have less vibrant plumage overall.
Most male birds are brightly colored to attract females.
Male guppies are colorful and females are not. They are usually white or clear in color.
Peacocks are male birds. Peahens are females.
A male betta has a long tail , are colorful and much larger that the females. females have short tails and are much smaller than males.(sometimes their kind of ugly)
That way the females would be attracted to males.
A male betta has a long tail , are colorful and much larger that the females. females have short tails and are much smaller than males.(sometimes their kind of ugly)