cack·le 
(kăkəl)
(kăkəl)v. cack·led, cack·ling, cack·les
v.intr.
1. To make the shrill cry characteristic of a hen after laying an egg.
2. To laugh or talk in a shrill manner.
v.tr.
To utter in cackles: cackled a sarcastic reply.
n.
1. The act or sound of cackling.
2. Shrill laughter.
3. Foolish chatter.
[Middle English cakelen, probably from Middle Low German kākeln, of imitative origin.]
cackler n.