Gerald is careful.
Piggie is not.
Piggie cannot help smiling.
Gerald can.
Gerald worries so that Piggie does not have to.
Gerald and Piggie are best friends.
In There Is a Bird On My Head , Gerald discovers that there is something worse than a bird on your head-two birds on your head Can Piggie help her best friend?.
Disney-hyperion Tienes un pajaro en la cabeza! = there is a bird on your head!, hardcover/mo willems
