(You have to tell this joke with the appropriate animal voices)
A chicken walks into a library, strolls up to the librarian and clucks "Boooook, booook, book!"
Surprised and more than a bit mystified, the librarian checks out a best seller and gives it to the chicken.
The chicken takes the book in her beak and leaves.
The next day, the chicken is back. It drops the book on the floor, stares at the librarian and again clucks "Booook, boooook, book book book."
The baffled librarian again selects a popular book, checks it out and gives it to the chicken.
The chicken takes the book and leaves.
Next morning, the chicken is back yet again, dropping yesterday's read and demanding "Booook, booook, book, book, book."
Once again, a book is signed out to the chicken.
At this point, the librarian cannot bear the mystery any longer. Who is this chicken, why is she checking out books and why are the books being returned after just one day?
As the chicken left, the librarian followed.
Out the door, across the street, and through the park.
The chicken made her way down the edge of the pond, where a huge bulldog perched on a lily pad.
The chicken dropped the book on the bank and declared "Book!"
To which the frog replied "Read it, read it...."