Complex sentence: In 1951,18 surviving nesting pairs were found on rocky islets in Castle Harbour by American ornithologist Robert Cushman Murphy and Bermudian naturalist Louis L. Mowbray and with them was a 15-year-old Bermudian boy, David B. Wingate.
Split into simpler sentences: In 1951,18 surviving nesting pairs were found on rocky islets in Castle Harbour by American ornithologist Robert Cushman Murphy and Bermudian naturalist Louis L. Mowbray. With them was a 15-year-old Bermudian boy, David B. Wingate.