This afternoon participants were led by Bob Behrstock on an expedition along the constructed wetlands of the new Cooks Slough Nature Park and the National Fish Hatchery at Uvalde. We searched for dragonflies and damselflies. Bob is also an expert in birds and has led many birding tours mainly in the USA and Latin America. He has photographed many species of insects and birds. Before this trek, I had not known that dragonflies and damselflies were so beautiful and that there were so many varieties.