Quack.

So I'm reading "The Baseball Hall of Shame's Warped Record Book", and I came across this entry:

Most games attended by a pet duck

6 games
Jarry Park, Montreal 1970

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The way the last-place Expos played in 1970 was for the birds. Maybe that's why one of the team's noisiest rooters was a duck!

The feathered fan attended his first game when two humans brought the little guy -- their pet -- to Jarry Park and asked if they could take him inside with them.

"The team policy said no dogs or cats were allowed, but it didn't say anything about ducks," recalled promotions director Roger Savard. "So I told them to buy him a ticket."

"It was really funny because every time the duck quacked, you could hear him all over the ballpark, and the fans started to quack back."

After six games the duck stopped coming. Maybe he just got tired of seeing the Expos put so many goose eggs up on the scoreboard.