Indian Peacock Pavo cristatus
You may think the eyes have it, but the live performance is with sound.
Like most bird species (including their close relatives pheasants) they have loud calls for broadcasting to all and sundry, and soft calls (in this case feather sounds) for more intimate communication, usually with the other sex.
Only the males have the extravagant tail. I suspect that the shimmering sound is particularly seductive to peahens.
Often referred to as ‘train-rattling’, it’s given in display to a female with the tail or train fanned: thus the tail forms a kind of reflector dish which it’s thought helps to project the sound and focus it on the male bird’s female audience.