Peregrine falcon, to be a

He who would flatulent be,
During Diarrhoea,
Let him in Flatulency,
Follow this Career,
There's no discouragement,
From the members of parliament,
His first bowel movement,
To be a bit on the smelly side.

He who would silly be,
Gainst all embarrassment,
Let him in constancy,
Follow Doctor Who,
There's no discouragement,
Shall make him once repent,
His first foolish intent,
To be a Gopsian.