Hudson – Canines and their two- legged friends descended upon the Hudson Elks Pavilion Sept. 21 for the third annual “Woofstock” to benefit the Buddy Dog Humane Society. Buddy Dog is a nonprofit, no kill shelter for cats and dogs based in Sudbury. Proceeds from “Woofstock” go towards the costs of treating their “guests” including all medical needs, shots surgeries and adoptions.?The event included demonstrations, music, games and vendor exhibits. For more information on the shelter, visit http://www.buddydoghs.com.