From WiKirby, your independent source of Kirby knowledge.
Parasol Waddle Doos are variants of Waddle Doos who hold a Parasol, allowing them to float and sway gently through the air. If inhaled with its parasol, Kirby gains the Parasol ability. If attacked and not defeated, a Parasol Waddle Doo will drop its Parasol and become a regular Waddle Doo, while its parasol becomes a separate entity, either floating away, or becoming hostile in its own accord.
Kirby's Adventure/Kirby: Nightmare in Dream Land
Kirby's Dream Course
Parasol Waddle Doo appears as an enemy on the courses in this game. When defeated, he gives Parasol abilty to Kirby. This is the only game in the series with Parasol Waddle Doo, but not normal Waddle Doo.
Kirby Super Star/Kirby Super Star Ultra
In Kirby Super Star and its remake, Parasol Waddle Doos gently fall, and when they touch ground, their parasol flies away.
Kirby: Triple Deluxe