[Tweeters] Northwestern Crow back on the docket

Peter Mann pmann at epl-inc.com
Sat Nov 13 09:27:05 PST 2021


If I rad the AOS proposal correctly, they recommend reinstating the NW Crow as a separate species in Northern BC and Alaska, while acknowledging that we (Puget Sound) are in a hybrid zone


Sent from my iPad

On Nov 13, 2021, at 7:16 AM, Steve Hampton <stevechampton at gmail.com> wrote:

The American Ornithological Society (AOS) has released the new proposals for splitting and lumping that it is considering. They are here:

Most concern splits of extralimital subspecies in the tropics (the AOS covers all of North America thru Panama).

However, the first proposal on the list is to re-merge Northwestern Crow with American Crow.

They were split last year based on research presented in Slager et al (2020). The proposal to re-merge is based on Butler (2021), a re-analysis of Slager's data. And there is a rebuttal from Slager in the pdf as well. It's a bit mind-numbing reading, but that's the scientific process at work. Regardless, both sides seem to agree that Washington is in the hybrid/intergrade zone.

happy crowing,

Steve Hampton
Port Townsend (Qatay), WA

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