BirdersUnite
Flight Style and Wingbeats: Identifying Birds by How They Move
A beginner-friendly guide to using wing shape, rhythm, flock movement, takeoff, landing, and habitat to identify birds …
Silhouette
BirdersUnite
Silhouette Birding: Shape, Posture, and Movement in Backlight
A beginner-friendly guide to identifying birds in glare, sunrise, sunset, and distance by reading silhouette, posture, …