eBird collects an interesting and important dataset of species observations, but it is far from the only one. There is usually a national dataset for each count

eBird collects an interesting and important dataset of species observations, but it is far from the only one. There is usually a national dataset for each country that contains more records than eBird. It can be good to know that there is a website gbif.org that collects many of these kinds of datasets. The eBird dataset is available from gbif here: https://www.gbif.org/dataset/4fa7b334-ce0d-4e88-aaae-2e0c138d049e https://www.gbif.org/dataset/4fa7b334-ce0d-4e88-aaae-2e0c138... It contains 705 million occurences. Can be compared with a Swedish dataset, Artportalen, that contains about a tenth of that, but that is just for Sweden https://www.gbif.org/dataset/38b4c89f-584c-41bb-bd8f-cd1def33e92f https://www.gbif.org/dataset/38b4c89f-584c-41bb-bd8f-cd1def3... In Sweden, majority of all birders report to Artportalen. I don't think eBird get much data at all, in comparison, for Sweden. EDIT: According to gbif, eBird has about 1 million occurences for Sweden, compared with 78 million for Sweden in Artportalen