Feather Atlas

2026-09-06 | original

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Why This Matters

The Feather Atlas is a searchable reference tool that lets anyone identify a found feather by filtering on pattern, color, size, feather position, and bird type. It's a plain example of how a structured, faceted database can turn specialist knowledge into a public utility for birders, educators, and wildlife enforcement.

Key Takeaways

Users identify feathers via faceted filters: pattern, color, size, position, and bird type.
Size is bucketed into four ranges from under 8cm to over 24cm, with all sizes searched by default.
Multiple patterns can be selected at once, and unknown attributes can be left blank to broaden results.

Worth a Look

Sibley Guide to Birds, Second Edition — If identifying a found feather by pattern, color, and size sparks your curiosity, this field guide is the natural companion for figuring out which bird it came from. Sibley's detailed illustrations show plumage variation across ages and seasons, making feather sleuthing far easier out in the field.

See Sibley Guide to Birds, Second Edition on Amazon → Affiliate link — we may earn a commission on purchases, at no extra cost to you. Product picked by AI based on this article; it is not a tested recommendation.

PATTERN

COLOR

SIZE

POSITION

TYPE OF BIRD

Next Selection Find Similar Feathers Clear All Filters

Use the buttons above to select different criteria for a feather you've found and attempt to identify it.

Select the pattern or patterns that most closely match your feather. Many feathers will match only a single pattern, but others, such as a barred feather with a broad white tip, will be best described by selecting more than one pattern. Unpatterned Two-Tone Mottled Barred Spotted Iridescence Dark Tip Pale Tip

Determine the most characteristic or striking color on your feather, and check the appropriate selection from the list. By characteristic color, we mean the color that is most noticeable on the feather. White

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Explore topics: feather atlas feather identification bird feathers search filters plumage patterns