Some of the other birds found here are: large hawk-cuckoo, blue-faced malkoha, yellow-browed bulbul, Indian scimitar-babbler and Loten's sunbird.

In 1984 the Asian elephant, not seen in Andhra Pradesh for nearly 300 years, re-appeared in the southern part of Chittoor district.

In 1993, a breakaway herd of five individuals moved to the Chamala Valley of Tirumala forests in this national park.

Originally reported from rocky ravines in the Eastern Ghats, the Indian golden gecko was rediscovered from the same area in 1985 The key threats the national park are construction and quarrying.

The Andhra Pradesh State Highway Project, is undertaking the upgrade of highways in the state of Andhra Pradesh, and this includes construction of Warangal-Pollacolu road, which passes close to the western boundary of the national park.

Another construction is of the Kapil Teertham Dam inside the national park by the Andhra Pradesh Government and the Tirumala Tirupati Devasthanam.

Both these construction projects raise concerns over the potential impact of the road and the dam on the habitat and the wildlife in the sanctuary.