The Oriole Bird completes his signature O-R-I-O-L-E-S cheer before the game on Opening Day.
-koolaid man voice- OH YEAAAAAH
it wasn't his first. he only does the cheer now that the guy who made it isn't around.
You're right. I do know that Wild Bill Hagy started the cheer, but since they've been at Camden Yards (18 years), it's been exclusively The Bird's.