Complex sentence: The cinnamon bittern or chestnut bittern ("Ixobrychus cinnamomeus") is a small Old World bittern, breeding in tropical and subtropical Asia from India east to China and Indonesia.
Split into simpler sentences: The cinnamon bittern or chestnut bittern ("Ixobrychus cinnamomeus") is a small bittern. It is of Old World origins, breeding in tropical and subtropical Asia from India east to China and Indonesia.