Explore, enjoy and protect the planet: "Northern Saw-Whet Owl" The northern saw-what owl (Aegolius acadicus), found in damp forests in much of North America, weighs between 2.5 and 4 ounces and seldom grows to be more than 8.5 inches (21 cm.) long. The male saw-whet sings, bobs, and dances his way to a female's embrace, crowning his efforts with the offering of a mouse, a shrew, a vole, or possibly a flying squirrel. Printed on recycled paper.