Hi all
- https://www.pnas.org/content/118/21/e2023170118
"By aggregating the species-level estimates, we find that there are ∼50 billion individual birds in the world at present."
Thanks Gary Lefko, Nunn
http://www.friendsofthepawneegrassland.org
https://www.inaturalist.org/projects/birds-and-more-of-the-pawnee-national-grassland
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