Pacific Black Duck - Mallard hybrids

To: Kev Lobotomi <>, Peter Menkhorst <>, Mike Carter <>, 'Nikolas Haass' <>, 'Jim Tate' <>, 'Russell Woodford' <>, "" <>
Subject: Pacific Black Duck - Mallard hybrids
From: Graeme Stevens <>
Date: Sat, 5 Jul 2014 15:21:01 +1000
Just a small addition to this discussion - particularly the record Nikolas 
I have undertaken close to 50 Atlas surveys at Warriewood (Sydney Northern 
Beaches NSW) in recent years and while pure Mallards are occasionally on the 
Warriewood Wetlands reserve and the settlement ponds, they seem to be much more 
common and resident along Mullet Creek between the Wetlands and Narrabeen 
Lagoon. These appear to be pure Mallards, generally paired. 
There are of course plenty of Pacific Blacks on both the Wetlands and the Creek 
so the opportunities for an enthusiastic Mallard Drake are plentiful!
I have certainly recorded what I considered to be good hybrids. Mind you there 
are other mixed feral hybrids occasionally which could confuse the issue 
(Muscovy, Chinese Whites, Khaki Campbell etc). They could certainly do with a 
clean out.
Best to all
Graeme Stevens 
> From: 
> To: ; ; ; 
> ; ; 
> Date: Sat, 5 Jul 2014 00:10:45 +1000
> Subject: Re: [Birding-Aus] Pacific Black Duck - Mallard hybrids
> Hi all!
> Although Mallards fortunately aren't that common in Australia, we can't be 
> too complacent about there presence. One thing I have noticed is that many 
> Mallards that I see on ornamental ponds are males (so definitely not a 
> population!), but since they are males they tend to get randy & if they have 
> nothing but black ducks to chase I am sure they would go after them. So the 
> chance of hybrids is quite high! All efforts should be made to remove these 
> birds, so they don't pollute the native ducks with their genes!-Kevin Bartram
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