hawked at and killed” is just one of the many unnatural events that exhibit how Macbeth evil acts affects the natural world in an unnatural way. In Act 4 and 5 the unnatural events are associated with how the power of evil has lured Macbeth into becoming desperate to keep his power all while showing him the consequence of this.
After hearing that danger is coming for her family, Lady macduff ponders on why danger is coming because she is “In this earthly world, where to do harm/ Is often laudable, to do good sometime/ Accounted dangerous folly” (4.2.83-85). By claiming the “earthly world, is often laudable” to harm, Lady Macduff is explaining how it's unnatural for the criminals to be rewarded which represents just how the power of evil has lurred Macbeth into do anything it takes to to keep his power, even if that means killing innocent
people.
Another example is when Macbeth finds out that his wife as killed herself and can only think life is “A tale/ Told by an idiot, full of sound and fury/ Signifying nothing”(5.5.29-31). On the contrary of Macbeth becoming desperate to keep his power, the power of evil has also shown of him the consequence of this by making him feel emotionless and feel as if life is a “tale told by an idiot” even after a terrible thing like his wife killing herself has happened. Therefore the power of evil has affected Macbeth in causing him to become desperate to keep his power all while showing him the consequence of his desperation.