The Ban Krang Camp is one of the best places in Thailand for watching rare birds and butterflies. It is the home to million butterflies and a huge number of rare species birds.
“Around the camping site there are several butterfly and birdwatching spots, also number of trekking routes to discover the rain forests.” (1)
[1]-https://www.thainationalparks.com/kaeng-krachan-national-park/attractions-and-maps