Nyra, a female barn owl (Tyto alba), is the secondary antagonist in the first half of the Guardians of Ga'Hoole book series, the main antagonist in the second half of the series, and the secondary antagonist of the 2010 movie Legend of the Guardians: The Owls of Ga'Hoole. She was mate to Metal Beak (real name Kludd), the main antagonist in both the book and the film (though in the film, Metal Beak (real name Surtr) and Kludd are two separate owls). She was voiced by Helen Mirren in the film.