Complex sentence: In northern Italy and Corsica the Spanish Sparrow is replaced by the Italian Sparrow, and the two intergrade in southern Italy, as well as Malta, Crete, and nearby islands such as Rhodes.
Split into simpler sentences: In northern Italy and Corsica the Spanish Sparrow is replaced by the Italian Sparrow. It intergrades with the Italian Sparrow in southern Italy, as well as Malta, Crete, and nearby islands such as Rhodes.