Voice: The Snowy Owl have a loud, booming “hoo, hoo” given as a warning or mating call. Females rarely hoot. Its attack call is “krufff-guh-guh-guk”. When excited it may make a loud “hooo-uh, hooo-uh, hooo-uh, wuh-wuh-wuh”. Other sounds are dog-like barks, rattling cackles, shrieks, hissing, and...