Wiktionary
cackly
a. Resembling or characterised by cackle.
WordNet
cackly
adj : like the cackles or squawks a hen makes especially after laying an egg [syn: squawky]
Usage examples of "cackly".
A cackly song, jist one note over and over, swing low, swing low, he sings, a band o'darklin boogies jest a-comin after me.