kottke.org on Nostr: The proliferation of hummingbird feeders has become a “major evolutionary force” ...

The proliferation of hummingbird feeders has become a “major evolutionary force” for the Anna’s hummingbird species in the western US. “Over just a few generations, their beaks have dramatically changed in size and shape.” https://www.science.org/content/article/bird-feeders-have-caused-dramatic-evolution-california-hummingbirds