Heather Dail, Instructor at University of South Alabama, has sent in a PDF of her paper, which is now on-line and may be found directly at http://tolkienvt.org/assets/papers/2017-dail-magical-beasts-in-lord-of-the-rings.pdf, and on the 14th annual conference site, currently at http://tolkienvt.org, but later to be archived at http://tolkienvt.org/2017.
The evolution of the animal to magical beast in Tolkien’s The Lord of the Rings (137 KB)