Hoo

Are you looking for the one in Super Mario 64?

Hoo is a gigantic owl boss and the protector of Hoo's Wood in Super Princess Peach.

Super Princess Peach
Hoo will throw eggs into the platform and will hatch into Hoolets. Then, Hoo will fly into Princess Peach. He will then repeat the attack all over again. After attacking him a few times, Hoo will get angry and destroy the platform and both, he and Peach fall. Detactivations must be timed carefully as his eggs surround him. The Joy Vibe should be used and deactivated and Peach must stomp on him as he protects himself.

Other names
Mori (meaning Forest in Japanese)

Bubo (meaning a genus of owls in German)

Gufoss (meaning Portmmanteau of "gufo" (owl) and "boss")

Trivia
In Super Mario Land 2: 6 Golden Coins, his presence and characteristics are comparable to Randonkel.