Note that the raven was associated with death and would be heard croaking over the corpses of soldiers on the battlefields. Soon the raven will have reason to croak above Macbeth's castle.
For more on this passage please see the annotations at the bottom of the main page of Macbeth 1.5
How to cite this article:
Mabillard, Amanda. Macbeth Glossary. Shakespeare Online. 20 Aug. 2000. (date when you accessed the information) < http://www.shakespeare-online.com/plays/macbeth/macbethglossary/macbeth1_1/macbethglos_raven.html >.