A good friend of mine plays the Bird opening religiously. He is rated 1800-1900 regularly, which for all intents and purposes, is pretty good. It may not be popular at master levels, but that doesn't mean it won't happen at master levels. It can be an effective tool to throw an opponent off because while it may not be the best, it may also not be studied by your opponent very much, so its practicality in that sense more than makes up for it weakness.
It provides its own advantages that black still has to defend against. Most people will just say it is bad because it isn't 1 of the 3 main opening pawn moves without understanding it.
Heres some fun games
From the Birds opening book by Timothy taylor