Birds are far more often heard than seen – but learning to identify them by ear can be a challenge. This course will introduce the most common bird sounds of Rocky Mountain National Park. We will begin with a field trip in the morning to several different habitats, to hear and practice identifying as many birds as possible. In the afternoon, we will reconvene indoors for a class session to reinforce and extend the learning from the morning. Both indoors and out, we will work on learning a standard vocabulary for describing sounds, and visualizing sound using spectrograms, so that our eyes can help train our ears.