A Chicken and a Book

A chicken walks into a library and up to the librarian and says, "Book."
The librarian says, "You want a book?"
"Book"
"Any book?"
"Book."
So the librarian gives the chicken a novel and off it goes. But an hour later, the chicken comes back and says, "Book-book."
The librarian says, "Now you want two books?"
"Book-book."
So she gives the chicken two books, but it comes back an hour later.
"Book-book-book."
"Three books?"
"Book-book-book."
So the librarian gives the chicken three books, but decides to follow the chicken this time to find out what's going on. The chicken goes down the alley, out of town, toward the woods. It goes into the woods, down to the river and down to the swamp where sits a bullfrog.
The chicken sets the books down by the frog and he looks at them and says, "Reddit, Reddit, Reddit."