BirdSize.com is an evolving reference resource. Measurements, taxonomy, source records, and explanatory material may be revised when better information becomes available.
What We Correct
Corrections may include inaccurate measurements, incorrect units, transcription errors, taxonomy problems, misplaced images, broken source information, or wording that gives a misleading impression of the underlying evidence.
How Corrections Are Reviewed
A suggested correction is not applied solely because another website reports a different number. The measurement itself, its definition, the species involved, and the reliability of the supporting source are considered before a change is made.
Apparent conflicts are sometimes caused by different measurement methods rather than an actual error.
Updates Are Not Always Corrections
A page can change even when the previous version was not wrong. Newer taxonomy, additional measurements, improved ranges, clearer explanations, or stronger source material may justify an update.
Reporting an Issue
Readers who find a possible error are encouraged to provide the species name, the value or statement in question, and enough source information for the claim to be reviewed.
Clear, specific reports are considerably easier to verify than general statements that a page is incorrect.