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On the threshold of flight

10,000 Birds

We are on the threshold, just stepping across it really, of understanding one of the most important evolutionary events that ever happened. ” We don’t call any rodents “flightless rodents” though almost all of them are. Science 12 December 2014: 346 (6215), 1253293 [DOI:10.1126/science.1253293].

Rodents 198
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National Audubon Society Birds of North America: A Guide Review

10,000 Birds

The crow was absorbed (or “lumped”) into American Crow with the 2020 checklist updates, an event covered by the Audubon Society website on September 04, 2020 (“Why the Northwestern Crow Vanished Overnight,” [link]. 334) is how Black Skimmer is introduced).