My mom is a real 'busy bee' around Christmastime. [=she is very busy and active]
My mom is ('as') 'busy as a bee' around Christmastime.
He always 'has a bee in his bonnet' about safety.
(..) Good morning, Zazu. Checking in... with the morning report. Fire away. Well! The buzz from the bees is that the leopards are in a bit of a spot... Oh, really? ...And the baboons are going ape over this. What are you doing, son? Of course, the giraffes are acting like they're above it all... (..)1994 The Lion King