Keoladeo heronry is full of life, action and activity. Besides the avian fauna, many species of mammals and reptiles are also common in the park. Bluebull and sambar feed on hydrophytes at the lake. Black buck and spotted deer herds graze in the extensive grasslands. Wild boar and jackal roam around in the scru bland.
Fishing cat frequents the lakes to scoop away fish or steel a duck.
Pythons are present in the park in large number. In winter they are invariable found basking near their hole. With all these features and many more, it is not surprising that Keoladeo is a site recognized as Waterfowl Habitats under the Convention on Wetlands of International Importance. Besides, it is a World Heritage Site too.