Stopped in to try and add a few new birds to my life list during our trip out west. Couldn't have been more pleased. Happened to arrive just as a guided bird walk was beginning. (830 am on Sat and Sun) Bill was an excellent guide. The visitor center is awesome as it has pretty much a glass wall overlooking a pond. You could sit in comfort here in any weather, rain or shine, and view the wildlife outside. We also loved the trails through the park. Many feeders are situated along the trails to attract hummingbirds and other birds for close up viewing. The ONLY negative comment I can make is that the visitor center (where the only restrooms are located!) doesn't open until 10. The park itself opens at 8, so if you arrive early plan accordingly! One port-a-john in the parling lot would be great!