John Wilson, Recreations of Christopher North…
“ Gutta Serena is to him unknown—no Snowy Owl was ever couched for cataract—no need has he for an oculist, should he live an hundred years; and were they to attempt any operation on his lens or iris, how he would hoot at Alexander and Wardrope!Night, doubtless, is the usual season of his prey; but he does not shun the day, and is sometimes seen hovering unhurt in the sunshine. The red or black grouse flies as if pursued by a ghost; but the Snowy Owl, little slower than the eagle, in dreadful silence overtakes his flight, and then death is sudden and sure. ”
