does anyone know how this goes?...?

Question

An amazing bird is the penequin
his beak can hold more than his belly can
for the life of me i don't know how the hell-e-can

Answer 1

DIXON LANIER MERRITT
American journalist, poet and humorist
(1879 - 1972)

A wonderful bird is the pelican
His bill can hold more than his belican.
He can take in his beak
Food enough for a week;
But I'm damned if I see how the helican.

Answer 2

I don't know how it goes but i think you mean pelican, not penequin