Someone Keeps Putting Tiny Cowboy Hats on Pigeons in Vegas

A person has been putting little cowboy hats on pigeons all over Las Vegas and no one knows who or why. Apparently, no one even knows HOW they got the hats on them? It's gotta be glue but that isn't confirmed.

Although maybe the pigeons saw themselves in a mirror and thought they looked just dandy and the hats are a fashion choice.

Who's to say?