There was no bird and it was never Berenstein. People are often curious about the spelling of “Berenstain,” a phenomenon that’s much older than the Bears themselves. As Stan Berenstain recalled in Down a Sunny Dirty Road, the 2002 autobiography he co-wrote with wife Jan, even his fourth grade teacher had questions: “On the very … More Berenstain Bears Tell the Truth: It’s Always Been BerenstAin (not BerenstEin)