IANAO but I do voluntary work at a Raptor conservancy. Owl silent-hunter stealth mode has one significant penalty not mentioned in the article: in some species

IANAO but I do voluntary work at a Raptor conservancy. Owl silent-hunter stealth mode has one significant penalty not mentioned in the article: in some species (e.g. Barn Owls) the feathers are not waterproof because they lack preen oil [0]. Consequently Barn Owl mortality increases in extended periods of wet weather (they get wet and then cold), forcing them to hunt in the day in some cases. Edit: IANAO = ... Ornithologist, not ...Owl, in case anyone was wondering. [0] https://ww2.rspb.org.uk/birds-and-wildlife/bird-and-wildlife-guides/ask-an-expert/previous/barnowlfeathers.aspx https://ww2.rspb.org.uk/birds-and-wildlife/bird-and-wildlife...