AOU Updates, 2020 Edition

 

Northwestern Crow with dead fish_FedWayWA_20090920_LAH_0904

We’re approaching mid-summer, the time that nestlings fledge, birders wilt, and ornithologists announce updates to lists of North American birds. As is common in these days of DNA analysis, most of the changes involve taxonomic reordering and changes in genus. That’s fascinating for those interested in taxonomy, but for most birders, it’s the lumps and splits that claim our attention. When species are lumped, we stand to lose a lifer. When subspecies are split into two or more full species, we can celebrate a longer list. There are three changes this year that will affect our North American life list totals.

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