Complex sentence: A wingspan of was accepted by Fisher and Peterson, who ranked the species as having the largest wing-spread of any living bird, and even higher measurements of up to have been reported, although no measurement over has been verified.
Split into simpler sentences: 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.