Hamlet Soliloquy Glossary: O, what a rogue and peasant slave am I! (2.2.555-612)
region kites
The birds of prey in the region, circling in the sky, waiting to feed. If Hamlet were not "pigeon-liver'd" (583) he would have long ago fed Claudius to the hawks.
Mabillard, Amanda. Hamlet Soliloquy Glossary. Shakespeare Online. 20 Aug. 2000. (date when you accessed the information) < http://shakespeare-online.com/plays/hamlet/soliloquies/regionkites.html >.