Complex sentence: Its habitat has been threatened due to large scale expansion of the island lands for development of the capital city in the last few decades; it is reported that habitat of these birds is now confined to about area in the southern part of the island.
Split into simpler sentences: Its habitat has been threatened due to large scale expansion of the island lands for development of the capital city in the last few decades. It is reported that habitat of these birds is now confined to about area in the southern part of the island.