[Tweeters] eBird guidance on Common vs Short-billed Gull; loss of NW Crow

[Steve Hampton]

eBird's taxonomic updates finally rolled out this morning. Two things:

1) Mew Gull is now split into Short-billed Gull (North America) and Common
Gull (Eurasia). 99.999% of the time, the correct entry will be Short-billed
Gull. I assume county reviewers will be removing Common Gull if there are
no prior records in their area (such as for "Kamchatka" Common Gull, the
most likely Common Gull to reach the PNW).

2) Northwestern Crow is no more; it was lumped with American Crow last
summer after a study showed a vast intragration zone between the two.

Note the splitting and lumping is done by the American Ornithological
Society each summer. It takes eBird a while to update their software.

-- 
Steve Hampton
Port Townsend, WA
*Qatay, S'Klallam territory*
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