The paper reports on developmental aspects of the ellipsis of core lexical
arguments in Warlpiri children's narratives The children, aged from four to
ten years, each told a frog story based on Mayer's Frog, Where Are You? (1
969). Stories from six adults were used for comparison. Warlpiri allows ell
ipsis of lexical subject and object and employs bound pronominals (clitics)
to register the number and person of subject and object, although third pe
rson forms are zero. Analysis of the stories showed a high percentage of nu
ll arguments in the youngest children's stories. The lowest percentage of n
ull lexical arguments was from the seven to eight-year-olds. The older chil
dren showed greater flexibility in the ellipsis or overt expression of lexi
cal arguments. Overall, the stories showed no bias toward ellipsis of subje
ct or object; for two-argument verbs, subject and object are equally likely
to be null, but more subjects were null in same-subject contexts than in s
witch-subject contexts. No differences were noted with patterns of lexical
ellipsis in sentences with overt or zero bound pronominals. The findings ar
e discussed in relation to Karmiloff-Smith's arguments for a three-phase de
velopmental pattern in narrative organization.