When did the red vented bulbul invade?

The red-vented bulbul (Pycnonotus cafer) is native to South Asia but has invaded various regions outside its native range, particularly in the late 20th century. It was first reported in countries like the Maldives in the 1970s and later spread to other areas, including parts of the Middle East and Africa. Its adaptability and feeding habits have facilitated its establishment in these new environments.