Peacock dance in the rain to attract a female partner.The male peacock open its feathers in the rain, spreading it colorful feathers. They open up their feathers to attract female peacocks for mating.
Male peacock spread their feathers not only in the rain, they dance and open their feathers whenever they feel the need to mate. In summary, male peacock dance in the rain to attract female peacocks for mating purpose.
There are some people who think that peacocks open up their feathers whenever they want to but actually, they do feel the sense to mate with peahens whenever it is about to rain. They would open up their tail of attractive and wonderful feathers in order to attract people. Take note that peacocks are usually vulnerable when they dance.
They can become the food of other predators but it is a risk that they take in order to attract peahens to them and they can mate before the rain actually starts. When peahens are interested, they will join the peacocks in dancing. It can be a beautiful scene that may be witnessed from time to time.