Which is the best park to see a Great Hornbill?
Royal Manas National Park
In Royal Manas National Park, Bhutan, about 50% of wildlife watchers report a Great Hornbill sighting on a given day, the highest of the 9 parks where we can rate it, from GBIF citizen-science data.
Where else can you see a Great Hornbill?
Khao Yai National Park and more
After Royal Manas National Park, the next-best odds of seeing a Great Hornbill are in Khao Yai National Park (Thailand, about 50%), Kaeng Krachan National Park (Thailand, about 40%) and Khao Sok National Park (Thailand, about 40%). Outside Asia, the best option is Khao Yai National Park in Southeast Asia (about 50%).
When is the best time to see a Great Hornbill?
It depends on the park
In the top parks, the best months are April in Royal Manas National Park (about 60%), March–April, August and December in Khao Yai National Park (about 60%) and September in Kaeng Krachan National Park (about 50%), as the share of wildlife watchers who report a Great Hornbill on a given day. Each park's Great Hornbill page has the full month-by-month chart.