As you follow the trail loop back to your starting point, you'll pass a foot bridge on the left. If you didn't visit the center and book shop prior to walking the nature trail, you can stop in the center to get information on Richardson Bay Audubon and local nature and wildlife.
If you missed the feeder station on your way in, you can check for activity near the sanctuary entrance . . . or visit the hummingbird garden at Lyford House.