Author 'Boucher Marc dit de Meilh' (Id 100029 ) : That other great gray owl gray. Another shot after all ... grabber family of owls. Owl of North America. The owl can measure 60 to 83 cm in length. She lives in boreal forests and peatlands littered with trees. It is seen as somewhat shy and hunt by day and is therefore as diurnal owl pillow. Hanmeil.