What two strange occurrences are reported in act of Macbeth?

In act 2, scene iv of William Shakespeare's play "Macbeth," several strange occurrences are reported.

- Lennox mentions the news that Forres, the royal castle, is being moved to Dunsinane, which is considered an unusual and unsettling event.

- The discovery of Duncan's murder is accompanied by reports of unnatural disturbances in nature. These include a violent storm, owls killing falcons (considered as bad omens), and horses eating each other.