Hasties Swamp Pochards and Occam's Razor

["Alan Gillanders" <>]

The observer is Welsh  born and raised and was a birder watcher before 
coming to Australia. I did not ask him about how he ruled out the other 
species.
Alan



Alan's Wildlife Tours
2 Mather Road
Yungaburra 4884

Phone 07 4095 3784
Mobile 0408 953 786
http://www.alanswildlifetours.com.au/
-----Original Message----- 
From: Dimitris Bertzeletos
Sent: Monday, October 27, 2014 09:40 PM
To: 
Subject: Hasties Swamp Pochards and Occam's Razor



From: 
To: 
Subject: Hasties Swamp Pochards and Occam's Razor
Date: Mon, 27 Oct 2014 13:35:59 +0200




Hello all,

First off I have no idea how experienced the observer is with north 
hemisphere ducks. So if they have considerable experience and the identity 
is beyond doubt- a male Red-crested is unmistakable in full breeding 
plumage- please ignore this post.
But considering that the only diving duck from the north hemisphere depicted 
in any Australian field guides is the R-c Pochard and the extreme 
unlikelihood of northern diving ducks reaching Australia in the first place 
(not unlikely but most don't migrate as far south as dabbling species). I am 
wondering if the the other red-headed diving ducks of the north hemisphere 
been considered (Common Pochard, Redhead, Canvasback) and Eurasian Wigeon?
Cheers,

D.

> Date: Mon, 27 Oct 2014 20:27:45 +1100
> From: 
> To: 
> Subject: [Birding-Aus] Hasties Swamp Pochards and Occam's Razor
>
> Hi Carl and Nikolas,
>
> I'm reasonably confident that there are no Red-crested Pochards in
> captivity in Australia.
>
> Australia has strict importation restrictions on birds and this has
> greatly limited what captive birds have entered the country over the
> last 30-40 years. As a result exotic waterfowl kept in Australian
> collections are pretty much limited to species that were established in
> captivity before that time. Off the top of my head the list is....
>
> Egyptian Goose
> Canada Goose
> Mute Swan
> Ruddy Shelduck
> New Zealand (Paradise) Shelduck
> Mandarin Duck
> Carolina Wood Duck
> New Zealand Scaup
> + various domestic forms such as Greylag Goose, Muscovy and Mallard
>
> Cheers,
> Rohan
>
> --
> Rohan Clarke
> www.wildlifeimages.com.au
>
> Latest updates
> http://www.pbase.com/wildlifeimages/root&view=recent
>
>
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