An extraordinary engraved bird track was located in the Weaber Range of the Keep River region of Northern Territory, Australia, in July 2000. This engraved track is dissimilar to most other examples in Australian rock-art, differing in shape, size and detail from the thousands of engraved, painted or beeswax depictions of bird tracks known from sites across the continent. Importantly, it also differs in technique from other engraved tracks in the Keep River region, having been rubbed and abraded to a smooth finish. We explore three approaches to the engraved track's significance, that it: a) depicts the track of an extinct bird species; b) relates to Aboriginal beliefs regarding Dreaming Beings; and c) is a powerful aesthetic achievement that reflects rare observation of emu tracks. We conclude that the Weaber bird track engraving most probably represents a relatively recent visual expression of ancient Aboriginal thoughts that have been transmitted through the centuries via story-telling and rock-art. This discussion highlights problems of assigning identification and meaning to ancient art but also suggests that aspects of history may be passed across generations for much longer than is commonly realized.