What is the primary color of a peacock?
The primary color of a peacock's plumage is iridescent blue-green. However, it's important to note that this vibrant color is actually an optical illusion caused by the microscopic structure of their feathers. The feathers of a peacock are made up of several layers of microscopic barbs and barbules that diffract and scatter light, producing the beautiful colors that we see.
Complete the following task based on the instruction and optional input provided.### Instruction:
What is the primary color of a peacock?

### Output:
The primary color of a peacock's plumage is iridescent blue-green. However, it's important to note that this vibrant color is actually an optical illusion caused by the microscopic structure of their feathers. The feathers of a peacock are made up of several layers of microscopic barbs and barbules that diffract and scatter light, producing the beautiful colors that we see.