Marabou stork was moved into the genus "Leptoptilos" and the ending was modified to "crumeniferus" and used by many authors until it was noted that the correct masculine ending to match the genus is "crumenifer". The marabou stork is a massive bird: large specimens are thought to reach a height of and a weight of . A wingspan of was accepted by Fisher and Peterson, who ranked the species as having the largest wing-spread of any living bird. Even higher measurements of up to have been reported, although no measurement over has been verified. It is often credited with the largest spread
What Bird is That? of "What Bird is That?" It was published in 1984 and incorporated all of Cayley’s paintings created over many years for his vision of releasing a “big bird book” and included a revised taxonomy. In the 53 years since its first edition, more than a hundred new bird species had been identified in Australia. Scientific names had been changed and groups of birds had been reordered. Lindsey brought "What Bird is That?" up-to-date with the latest birding conventions of the time, as well as contributing a valuable supplementary list of birds and a scholarly catalogue of Cayley’s paintings. The "Signature