What would happen if the Indian peacock became extinct?

Peacocks are highly sought after for the religious purposes their feathers are used for. They are also being killed by pesticides. If caught killing a peacock, many charges include death according to sources, but not selling its feathers. Catching a peacock is easy as well, since they are Flightless Birds

If completely killed, the world would lose a brilliantly beautiful bird. These religions that so prize these peacocks would lose an iconic figure.