Where to see
Papilio helenus
Cuc Phuong National Park leads · 6 parks ranked by real sighting rates
Share of wildlife watchers reporting a Red Helen Swallowtail during a day in the park, from citizen-science data (GBIF)
| # | Park | Country | Sighting |
|---|---|---|---|
| 1 | Cuc Phuong National Park | 🇻🇳 Vietnam | |
| 2 | Namdapha National Park | 🇮🇳 India | |
| 3 | Sinharaja Forest Reserve | 🇱🇰 Sri Lanka | |
| 4 | Periyar National Park | 🇮🇳 India | |
| 5 | Kaeng Krachan National Park | 🇹🇭 Thailand | |
| 6 | Khao Yai National Park | 🇹🇭 Thailand |
Cuc Phuong National Park
In Cuc Phuong National Park, Vietnam, about 40% of wildlife watchers report a Red Helen Swallowtail sighting on a given day, the highest of the 6 parks where we can rate it, from GBIF citizen-science data.
Namdapha National Park and more
After Cuc Phuong National Park, the next-best odds of seeing a Red Helen Swallowtail are in Namdapha National Park (India, about 40%), Sinharaja Forest Reserve (Sri Lanka, about 30%) and Periyar National Park (India, about 30%). Outside Southeast Asia, the best option is Namdapha National Park in Asia (about 40%).
It depends on the park
In the top parks, the best months are May and June in Cuc Phuong National Park (about 70%), October in Namdapha National Park (about 70%) and August in Sinharaja Forest Reserve (about 50%), as the share of wildlife watchers who report a Red Helen Swallowtail on a given day. Each park's Red Helen Swallowtail page has the full month-by-month chart.
