What At the beginning of Scene 4 Ross and an old man discuss strange events night?

At the beginning of Scene 4 in Shakespeare's "Macbeth," Ross and an old man discuss mysterious and unnatural occurrences that have transpired during the night. They note that the night seemed abnormally long, and the moon appeared to be frozen in the sky. Additionally, they mention the strange behavior of animals, including an owl killing a falcon, a common bird of prey dominating the skies, and horses devouring each other. These unusual events are seen as disturbing omens and portents of trouble, foreshadowing the chaos and upheaval to come in the play.