Receive free access to the Cornell Lab of Ornithology’s online tutorial Be a Better Birder 1: Size and Shape, a $29 value.

Northern Saw-whet Owl

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This self-paced course draws directly on the knowledge and expertise of scientists and educators at the Cornell Lab of Ornithology to help you learn bird identification through expert tips and interactive quizzes. You’ll be practicing the key skills of using size and shape to take your birding skills to the next level.

There’s more to discover in the follow-up course Be a Better Birder 2: Color and Pattern.

Photo credit: Northern Saw-whet Owl/M Lorenz