Monkey Hill and the area with the multitude of birds are included in the section of the zoo referred to as the African Savanna. As I continued to roam the path, I found some of the habitats empty. The animals must have been holed up in some shadier spot trying to keep cool. Other animals just happened to be too far away for a good shot.
Living in an area where the landscape is mostly flat, makes having any kind of hill a big deal. In the case of Audubon Park there is Monkey Hill. As a kid I can remember playing on the hill. Kids would ride their bikes down the hill. When the zoo ditched the old animals cages for open habitats, the lions were given reign over the hill. In recent years people were again given access to the hill. Now there are structures to climb. There is water to splash.