Birds are amazing, and rightfully admired, animals: beautiful, intelligent, successful, and, unlike many other animals, readily observable in almost all environments. Please note that this is not a course in bird identification. Instead, we will examine various aspects of the nature of birds. These include the things that make birds unique animals: their flight, feathers, evolution, physiology, classification, feeding, bird song and communication, migration, reproduction, and other topics. Instructor: Joel Kositsky