Banjo-Kazooie Wiki

Hatch is an ability which Kazooie alone can learn from Jamjars in Terrydactyland, and is executed by holding Z button (N64) and pressing B button (N64). It allows Kazooie to sit on top of an object and warm it with her downy feathers. This ability is primarily used for hatching eggs, such as the eggs which Terry lost in Terrydactyland, although it could potentially be used on anything that needs warming up (and won't respond to fire).

The Hatch ability can be used ten times in Banjo-Tooie':

Jamjars Rhyme[]

I can't believe that
you're a bird,
who can't hatch eggs
it's so absurd!
So hold down Z button (N64) and
then press B button (N64),
then a real bird I'll
finally see!