Flock O'Clock Field Guide

Know what you're looking at.

Search 1,199 species guides, compare look-alikes, and learn the details that make each bird recognizable.

1,199 species guides
Bird of the day

Regional explorer

Find birds near you.

Choose a broad region to explore birds whose documented ranges include that area. Use your location only if you want the map to choose for you.

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Your regional list

Birds of the Northeast

Games

Practice mode

Bird identification quiz

Choose your birds, quiz length, clue type, and practice style. Scores and learn-mode progress stay on this device.

Quiz style
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Identify birds by photo and call

See the bird, play its recording, then choose the correct species.

Sound library

Learn birds by ear.

Press play to hear real, credited bird recordings without leaving the field guide.

Class Aves

Explore the bird family tree.

Open an order and family, then choose a species to jump directly to its field guide.

Field marks, mapped

Feather & Plumage Glossary

Tap anywhere on the bird to explore its field marks. The categories narrow the term list; the whole bird stays interactive. Open a close-up for wing, tail, head, or foot details. The printed labels come from the original bird-study drawing.

Whole birdTap a feature to explore

Original labeled plate from A Manual of Bird Study (1927). Highlights show anatomical locations; stripes and wing patterns vary by species.

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A–Z

Find a feature

Whole bird: A Manual of Bird Study (1927), William H. Carr / Louis Agassiz Fuertes, public domain. Face patterns: Birdhead, L. Shyamal, CC BY-SA 2.5. Illustrations shown unchanged with interactive overlays and cropped views; face-pattern overlay adaptation under the same license. Definitions use modern birding terminology.

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Represent a school, birding club, conservation group, or community organization? Tell us how you would like to work with Flock O’Clock.

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