"That luminous Barn Owls have been seen before in the same part of Norfolk is certain... We have it on the best authority - namely, from the man himself - that some years ago Frederick Rolfe, gamekeeper now retired, saw what could have been nothing else when stopping up fox-earths at West Bilney. A few nights afterwards he saw the same shining bird again, subsequently shot it, and found that it was a Barn Owl. He said that the bird 'was emitting a very bright light when near him and that it continued to give out a slight glow for some hours after it was dead'."
http://www.owlpages.com/articles/min-min/
http://www.owlpages.com/articles/min-min/