With the arrival of spring, many of our most colorful birds arrive in the Sierra from the Neotropics including warblers, grosbeaks, tanagers, and orioles. We’ll focus on field identification of these “avian butterflies” and how to tell them apart, including the females, which aren’t as colorful. Learn about their wintering range and habitats when they go south of our region. Discover local habits and habitats, which offer useful clues to accurate field identification, as will typical songs and calls that may blend confusingly during the dawn chorus.