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Data Quality

Understanding the eBird review and data quality process

Did you know that every record submitted to eBird goes through the eBird data verification process? Using a combination of automated data filters and a network of local experts, eB...

eBird Review Standards

Every record entered into eBird is checked for accuracy, first by automated filters that flag unusual records, and then by expert reviewers who devote their personal time to ensure...

Breeding Code Reinterpretation

When perusing breeding codes in eBird, you may occasionally notice that there is a (?) next to the breeding code that has been reported. This is a reinterpreted breeding code. This...

Location issue

Reviewers have tagged some eBird checklists as having location issues; these checklists show this message at the top: Location issue. This checklist has been flagged because there...

Distance too long

Some checklists may display this message: Distance too long. This checklist has been flagged for covering a large distance. A more specific location is required for public display...
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