[2] Papa Smurf tries to create a new fertilizer, but it transforms an ordinary flower into a smurfivore plant.
After destroying the plant, two smurfs try to get rid of the fertilizer throwing it in a lonely place.
However, a baby bird swallows it and becomes a huge, destructive monster named the "Howlibird".
Papa Smurf goes to his lab in the village to get an explosive which, when thrown by the crossbow, blows the Howlibird's feathers.
Some time later, while the smurfs are repairing the village, the Howlibird reappears with regrown feathers, but with his current size he is not a menace anymore.