Hello @gentleshaid,
This is also a saying familiar to me, Proud as a Peacock. As far domestication goes, before COVID struck we used to see a peacock strutting around in front of a local bagel shop (Long Island, New York). I don't know where he came from, but the shop owner encouraged the visits by putting food out. The peacock was probably good for business :))
An interesting article. Thank you!
Thanks for the contribution @agmoore. Yes, the beautiful bird is such a beauty to behold and I am damn sure it was good for business. I would not mind having a couple of them around me as well.