What if I disagree with someone's identification?

If you disagree with an identification, the best thing to do is to add an identification of your own. It's helpful to provide a reason for disagreement in a comment. 

If it is your observation, your identification differs from the community’s assessment, and you prefer that your identification take priority, it is possible to reject the Community Identification by clicking the "Reject?" link in the Community Taxon section on the observation's web page.

You can also opt-out of community IDs entirely in your account settings.

However, note that observations will become Casual grade if the observer has opted out of the community ID and the community ID taxon is not an ancestor or descendant of the taxon associated with the observer's ID.