Paint your porch blue to shoo away birds?

Does this really work? I’ve got a front porch that hosts lots of birds in the summer that like to build nests.. which brings bird poo on the floor below.. and as of last year.. SNAKES!

A friend of mine told me to paint the top of my porch sky blue. As it will “confuse the birds” and make them not want to nest…. Is this really true? I’m very skeptical. But I’m open to any advice.
Especially about how to keep away these birds!