Corrections

Nature references go stale and get things wrong. Here is how to tell us, what we do about it, and every correction we have made to published pages.

Report an error

Email hello@birchcompass.com with the page and what you expected instead — a bird that does not occur in your state, a landmark on the wrong side of a state line, a bloom time a month off. Local knowledge beats a national dataset and we would rather hear it.

What we do with it

Before it was published

Every regional passage was checked against the public datasets behind it in a structured review before the site went live, and the corrections from that pass are already in the text you are reading. That was pre-publication editing rather than a correction to anything you saw, so it is not listed below — this log is for pages that were live and wrong.

Corrections to published pages

Nothing logged yet. When we correct something that was live on the site, it is listed here with the date and what changed — including corrections nobody but us would have noticed.

Some figures on this site are stated as modeled or typical rather than measured — the methodology page says which are which. A modeled figure differing from your local experience is a limitation we have disclosed, not an error, though we still want to hear about it.