Bioblitz, taking place in Tower Grove Park on Friday, September 27. St. Louis BioBlitz is an exploration and inventory of the biodiversity of urban parks. Teams of public volunteers led by biologists, naturalists and environmental enthusiasts search natural areas, listing as many different species as they can find. At the end of the day, participants have a new appreciation of these very special places. Here’s your chance to learn about everything from butterflies to birds, crickets to katydids! Join teams of scientists and skilled naturalists during the BioBlitz at St. Louis urban parks.