Howling is an innate behavior of dogs. It may be to call companions, to be excited, sad, to confirm location, to issue a warning, or in estrus. Dogs will howl under these circumstances. When a dog at home howls, it may be due to boredom, excitement or sadness. At this time, the owner needs to accompany the dog, play with the dog more, or take the dog out for a walk. There is no need to worry about the omen.