Hasties Swamp Pochards and Occam's Razor

[Dimitris Bertzeletos <>]

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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