Every time I have gone out to shine barn with light tonight the owl has been in it. Last time owl was wrestling on ground with pullet carcass that was tied down with a rope. Chickens roosting near made no sounds until they could see owl. When they made sounds dogs quickly ran in. Also with all of this owl activity, none has been directed at birds surrounding by deer netting. Deer netting will be explored as a method of keeping owl from using smaller openings. Long strings will dangle down like a thin curtain to block entrance I use routinely. A little supplemental lite will be applied so chickens can see owl so they will produce alarm calling dogs in as soon as owl visits.