Listen for the crunch of dry pine needles. Then the Unicorn stamped the ground with his hoof, and shook his mane, and spoke. -- C.S. Lewis, The Chronicles of Narnia: The Last Battle (1956) Leave those "needles in a haystack" behind and turn your ear toward unicorns in a bed of pine needles. The crunch of fallen pine needles can be a dead giveaway that a unicorn is present. As unicorns stamp and paw the ground, the crisp leaves beneath them will crackle: The dry pine needles crumbled beneath her feet and the unicorns' hooves, scenting the still night air. (Kathleen Duey, The Mountains of the Moon, 2002) It would seem that unicorns are especially fond of galloping amongst pine trees, no doubt lured by the scented air.