I was trying to copy and paste to keep the discussion in one thread but I am
having some trouble doing so from my phone.
For those of you not yet weary by all the "cackling" here is David Sibley's
input. It is telling that David suggests that a hybrid cannot be ruled out.
風 Swift as the wind
林 Quiet as the forest
火 Conquer like the fire
山 Steady as the mountain
Sun Tzu The Art of War
> (\__/)
> (= '.'=)
> (") _ (")
> Sent from somewhere in the field using my mobile device!
Andrew Baksh
www.birdingdude.blogspot.com
Begin forwarded message:
> From: David Sibley <sibleygui...@gmail.com>
> Date: February 17, 2016 at 5:55:18 PM EST
> To: birdw...@listserv.ksu.edu
> Subject: Re: [BIRDWG01] goose ID
> Reply-To: David Sibley <sibleygui...@gmail.com>
>
> I agree with the comments by Ken Abraham and Shai Mitra about the
> difficulty of identifying the Central Park goose, and would only add that
> there's no way to rule out the possibility of a Cackling Goose X Canada
> Goose hybrid.
>
> I also wanted to emphasize and expand on the point made by Ken Abraham,
> that "Lesser" Canada Goose simply doesn't exist outside of the westernmost
> states and provinces. This is contrary to virtually all published
> references (including the Sibley Guide to Birds, ahem, but changed in the
> forthcoming revised Eastern and Western guides). The latest evidence
> suggests that the breeding white-cheeked geese of north-central Canada are
> simply Canada Goose (subspecies *interior*) and Cackling Goose (*hutchinsii*),
> both showing a cline of size slightly larger in the south and smaller in
> the north, and with some amount of interbreeding where they meet. There is
> apparently no widespread and uniform population of medium-sized geese in
> central Canada.
>
> Geese that are genetically Canada and as small as "Lesser" have been found
> breeding only in central and southern Alaska, wintering in the Pacific
> states, although it sounds like there has been little study of geese in
> northwestern Canada. Unanswered questions (as far as I know) include where
> and how, or if, these small Canada Geese interact with neighboring
> populations, especially with *taverneri* Cackling Goose to the north or
> larger Canada Geese to the east.
>
> I don't know enough about the rules of nomenclature to know what this means
> for the name *parvipes*, which is based on a specimen from Veracruz,
> Mexico, but certainly in the birding world and discussions like this one it
> sounds like the whole concept of "Lesser Canada Goose, *B. c. parvipes*"
> should be retired, and the Alaska population should get a new name and a
> fresh start.
>
> Best,
> David Sibley
> Concord, MA
> sibleygui...@gmail.com
> www.sibleyguides.com
>
>> On Sun, Feb 14, 2016 at 11:28 AM, Peter Post <pwp...@nyc.rr.com> wrote:
>>
>> I photographed this goose, yesterday, 13 February, on the Central Park
>> Reservoir, New York City. I would appreciate comments concerning ID. I'm
>> leaning toward B. canadensis parvipes. Thanks.
>>
>> Photos can be found here:
>> http://www.ardithbondi.com/page127.html
>>
>> Peter Post
>> New York City, NY
>> Archives: http://listserv.ksu.edu/archives/birdwg01.html
>
> Archives: http://listserv.ksu.edu/archives/birdwg01.html
--
NYSbirds-L List Info:
http://www.NortheastBirding.com/NYSbirdsWELCOME
http://www.NortheastBirding.com/NYSbirdsRULES
http://www.NortheastBirding.com/NYSbirdsSubscribeConfigurationLeave.htm
ARCHIVES:
1) http://www.mail-archive.com/nysbirds-l@cornell.edu/maillist.html
2) http://www.surfbirds.com/birdingmail/Group/NYSBirds-L
3) http://birdingonthe.net/mailinglists/NYSB.html
Please submit your observations to eBird:
http://ebird.org/content/ebird/
--
