Complex sentence: Between 1954 and 1962, a budgerigar named "Sparkie" held the record for having the largest vocabulary of a talking bird; at his death, he knew 531 words and 383 sentences.
Split into simpler sentences: Between 1954 and 1962, Sparkie held the record for having the largest vocabulary of a talking bird. At his death, he knew 531 words and 383 sentences.