The most interesting and eccentric bull for 2013 I call "Droopy". His left antler swoops down more than any bull I have seen. Last I saw Droopy he was still scraping velvet. He will be in the fight this year for a harem. I wonder how he will fare with that left antler. (Look at those flared nostrils -- he was tracking.)
Below is Twinforks. Look for his forked tine on the left side and a tipped eye guard. He is an easy ID. First rutting bull of 2013, waaay early.