Distribution
It is the largest butterfly to be found in India. It is widely distributed and locally common in forest areas.
It is found in Nepal, India, Bangladesh, Myanmar, peninsular and eastern Malaysia, Singapore, Indonesia, Laos, Kampuchea, Thailand, Vietnam, southern China including Hainan, and Hong Kong.
In India the butterfly is found in the North-East of the country including Sikkim, West Bengal and Orissa. It is also found in the Andaman and Nicobar Islands.
In the Indonesian archipelago, the Common Birdwing is found in Sumatra, Nias, Enggano, Java, Bawean, Kangean Islands, Bali, Lombok, Sumbawa, Great Natuna (Bunguran), Sulawesi, Butung, Tukangbesi, Kalimantan and Brunei.
In Hong Kong, Troides helena is at the northern limit of its range. It is not common in Hong Kong but it is observed that there are stable populations in three sites (the surrounding area of Po Lo Che (Sai Kung), Shan Liu Road (Tai Po) and Kadoorie Farm & Botanic Garden in the New Territories. The species is also found on Lantau Island and Hong Kong Island.
In Thailand, the Troides helena can be found at Kaeng Bang Rachan at the source of the Wang Thong River.
Read more about this topic: Troides Helena
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