Date: 11/13/21 9:31 am
From: Peter Mann <pmann...>
Subject: Re: [Tweeters] Northwestern Crow back on the docket

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...> wrote:

The American Ornithological Society (AOS) has released the new proposals for splitting and lumping that it is considering. They are here:<,1,U8p0WbkgHYgdp1bvKD6ekmuBBFcn01XLftMu9_NsQm1BhlWGcgtjpGvblr_CpTHqU_Pmz7yjEU0cbGI_10WQqz6NrXubAfekWVF_aEgwzt4q5ktFS2dd7qED&typo=1>

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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