October 1977 – vol. 70, issue 10, pp 455–455 Until the differences between Long-eared Asio otus and Short-eared Owls A. flammeus in the field were analysed by A. H. Davis and Robin Prytherch [Brit. Birds 69: 281-287, plate 49), flight identification of these species was seldom attempted, or a day-flying Asio owl was assumed to be a Short-eared. Now, however, the owl in plate 108 (page 390, and repeated here), photographed by G. StJ. Hollis i... This article is only available to registered users.To read more, please log in or purchase a subscription.