June 1941 – vol. 35, issue 1–8 (Plate i.) does not appear to be a great deal of literature concerning the nocturnal habits of the Long-eared Owl (Asio o. otus), and, to a large extent, this can be understood as observations during the hours of darkness are difficult, and sometimes impossible. The Long-eared Owl is probably the most nocturnal of all our owls and is not often seen on the wing, either hunting or displaying, during... This article is only available to registered users.To read more, please log in or purchase a subscription.