Birds of the World

birdsoftheworld.org ↗

Detailed bird life histories with maps and multimedia

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SI Score: 70/100
Pricing: Subscription AI reading, not confirmed
Free plan: Not confirmed
Sign-up required: Not confirmed

species-reference birds ornithology

Ask SI about Birds of the World

Answers use saved listing facts and recorded sources.

What it does

Birds of the World provides species and family accounts, taxonomy, maps and bird-related multimedia.

Read a preview account before deciding whether the detailed species material fits your research. The service combines life histories with maps and family overviews, giving a broader treatment than a simple checklist. Full account access is presented through subscriptions, while previews show the format.

Sources

Birds of the World - Cornell Lab of Ornithology (Oct 26, 2026)

SI Score

70/100

#70 in Reference

Based on published information. No hands-on task test.

Method 2.0 · Published source review Assessed Oct 26, 2026Score ceiling for this evidence: 84/100.

Product usefulness 70

Evidence

Species life-history research with previews and institutional-reader access supports documented audience fit.

Limits: AI review of saved source passages. No hands-on test, human approval or automatic-provider checker receipt.

Source links and check dates are in Sources and checks below.

Separate website checks

These checks do not add points to the SI Score. They inspect the website's HTML, not the product in use.

Basic website checksunknown

No check recorded.

HTML accessibility checksunknown

No check recorded.

Homepage HTML responseunknown

No check recorded.

Trackers in homepage HTMLunknown

No check recorded.

Page date hintsunknown

No check recorded.

Policy links do not verify a company's conduct. An HTML response time is not application speed. Tracker and accessibility checks miss behavior after page load. Copyright dates do not prove product upkeep.

How the SI Score works →

Unconfirmed details may be unassessed, absent from the pages checked or temporarily unreadable. A missing price does not mean the service is free.

Sources and checks

Supporting pages for product usefulness, site facts, prices and separate website checks. Each record keeps its own date. Reading a page does not establish how well the product performs in use.

birdsoftheworld.org/bow/home
- PricingAI reading, not confirmedChecked Oct 26, 2026
  The homepage offers subscriptions to access species accounts, maps, multimedia and family overviews.
- Product usefulness evidenceChecked Oct 26, 2026

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