We were looking for hiking options in East Austin when we stumbled across this place. I wish I had planned better because there are apparently regular bird counts and guided tours listed on the Hornsby Bend Bird Observatory website calendar. Admittedly, there is some odor, which is not surpising as it is a biosolids treatment plant. But this is such a nice space for wildlife, and it is very gracious that the city permits the public to enjoy birding here. The gentleman at the front gate was extremely helpful and provided us with a map which came in handy. We saw only four people in two hours. Ironically, we would have stayed longer but for the lack of restrooms--there are some in the administration building, but that is not always open during hiking hours.