If you’ve been birding for any length of time, you know that species come and species go. The birds don’t change, but our perception of which variations are actually different species is constantly undergoing review. We have lumpers, who combine disparate species into one, and splitters, who separate subspecies into two or more different species. Add in the (relatively) new ability to examine DNA, and you have a recipe for constant change.
In case you haven’t heard, we have a new bird on the block. Last summer the familiar Western-Scrub Jay was split into two species—the California Scrub-Jay (Aphelocoma californica) and the Woodhouse’s Scrub-Jay (Aphelocoma woodhouseii).
Heinlein said that there’s no such thing as a free lunch.* He must not have been a birder. When the American Ornithological Union met this year, many birders added a new species to their life lists without even leaving their arm chairs. It’s time to update our field guides—even the brand new Sibley’s. The Western Scrub-Jay has now been split into the California Scrub-Jay (Aphelocoma californica, left) and the Woodhouse’s Scrub-Jay (Aphelocoma woodhouseii).
Mountain Plover 