Birds: The park has more than 300 species of birds. Some of them are migratory and others resident all year round. The park has four species of endangered hornbills. Other rare species include the Red-headed Trogon, Golden-fronted Leafbird, Large Cuckooshrike, Verditer Flycatcher and Minivet.
There are also Hill and Common Myna birds that can mimic human voices. There are colourful Little Pippas and Siamese Firebacks. There are also hunting birds such as falcons.
The most popular bird watching sites are in the jungle near the two campsites. Grassland and water fowl can be seen from Nong Pak Chi Watching Tower.