A friend of mine told me this one the other day…

A librarian is working away at her desk when she notices that a chicken has
come into the library and is patiently waiting in front of the desk. When
the chicken sees that it has the librarians attention, it squawks, Book,
book, book, BOOK!

The librarian complies, putting a couple of books down in front of the
chicken. The chicken quickly grabs them and disappears.

The next day, the librarian is again disturbed by the same chicken, who puts
the previous days pile of books down on the desk and again squawks, Book,
book, book, BOOK!

The librarian shakes her head, wondering what the chicken is doing with these
books, but eventually finds some more books for the chicken. The chicken
disappears.

The next day, the librarian is once again disturbed by the chicken, who
squawks (in a rather irritated fashion, it seems), Book, book, book, BOOK!
By now, the librarians curiosity has gotten the better of her, so she gets
a pile of books for the chicken, and follows the bird when it leaves the
library. She follows it through the parking lot, down the street for several
blocks, and finally into a large park. The chicken disappears into a small
grove of trees, and the librarian follows. On the other side of the trees
is a small marsh. The chicken has stopped on the side of the marsh. The
librarian, now really curious, hurries over and sees that there is a small
frog next to the chicken, examining each book, one at a time. The librarian
comes within earshot just in time to hear the frog saying, Read it, read it,
read it…