Complex sentence: A dead specimen was found the next year by three ornithologists, associated with the Australian Museum, who claimed the prize and efforts to find living specimens were sparked and eventually, in 2013, the first confirmed sighting in over a century was confirmed.
Split into simpler sentences: A dead specimen was found the next year by three ornithologists, associated with the Australian Museum, who claimed the prize and efforts to find living specimens were sparked. Eventually, in 2013, the first confirmed sighting in over a century was confirmed.