[Tweeters] Northwestern Crow back on the docket

[Hans-Joachim Feddern]

Somewhat related to me is the difference in vocalization between American
Crows here in the great Northwest and American Crows on the East Coast. I
lived in Maryland and never heard an American Crow make the meowing cat
call sound there! Are we talking subspecies here? Of course I never heard
of anybody suggesting to lump Fish Crow with American Crow either!

On Sat, Nov 13, 2021 at 6:20 PM Robert O'Brien <baro at pdx.edu> wrote:


> Well it's my understanding that one ornithologist is recommending

> reinstatement, with considerable backup data.  But there is a rigorous

> argument against reinstatement by the ornithologist who got it lumped in

> the first place.  Not considered as yet so no decision.  I would guess,

> after reading the arguments, that it will not be resplit.

> Bob OBrien  Portlad

>

> On Sat, Nov 13, 2021 at 9:27 AM Peter Mann <pmann at epl-inc.com> wrote:

>

>> Steve

>>

>> 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

>>

>> Peter

>>

>> 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:

>> https://americanornithology.org/wp-content/uploads/2021/11/2022-A.pdf

>> <https://linkprotect.cudasvc.com/url?a=https%3a%2f%2famericanornithology.org%2fwp-content%2fuploads%2f2021%2f11%2f2022-A.pdf&c=E,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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-- 
*Hans Feddern*
Twin Lakes/Federal Way, WA
thefedderns at gmail.com
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