Complex sentence: He fought hard for the passing of a private members bill that was enacted as the Protection of Birds Act 1954, and the subsequent amendments in 1964 and 1967 and as a member of the Lords campaigned vigorously for the passing of the Wildlife and Countryside Act 1981.
Split into simpler sentences: He fought hard for the passing of a private members bill that was enacted as the Protection of Birds Act 1954, and the subsequent amendments in 1964 and 1967. As a member of the House of Lords, he campaigned vigorously for the passing of the Wildlife and Countryside Act 1981.