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Pacific Black Duck - Mallard hybrids

To: Nikolas Haass <>, Peter Menkhorst <>, "'Mike Carter'" <>, "'Jim Tate'" <>, "'Kev Lobotomi'" <>, "'Russell Woodford'" <>, "" <>
Subject: Pacific Black Duck - Mallard hybrids
From: Nikolas Haass <>
Date: Fri, 4 Jul 2014 04:32:53 +0000
O.K. Here we go: On the 27th July 2008 I saw a female Pacific Black Duck x
Mallard hybrid with 9 downy chicks (i.e. F2 generation; don't know who the
father was though) at Warriewood. I hope that we have photos.

Nikolas

A/Prof Nikolas Haass | Head, Experimental Melanoma Therapy Group
 
The University of Queensland Diamantina Institute
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On 4/07/14 2:22 PM, "Nikolas Haass" <> wrote:

>Hi Peter & Mike,
>
>That's interesting. I am pretty sure that I had 'classic' Pacific Black
>Duck x Mallard hybrids at Warriewood (Sydney) a few years ago. Will check
>if I have documentation.
>
>Best wishes,
>
>Nikolas
>
>
>
>A/Prof Nikolas Haass | Head, Experimental Melanoma Therapy Group
> 
>The University of Queensland Diamantina Institute
>Level 6 | Translational Research Institute | 37 Kent Street |
>Woolloongabba QLD 4102
> 
>T: +61 (0)7 3443 7087 | M: +61 (0)424 603 579
>F: +61 (0)7 3443 6966
>E:   | W: www.di.uq.edu.au <http://www.di.uq.edu.au/>
> 
> <http://www.di.uq.edu.au/>
>...Turning scientific discoveries into better treatments…
> 
>CRICOS Code 00025B
> 
>This email is intended solely for the addressee. It may contain private or
>confidential information. If you are not the intended addressee, you must
>take no action based on it, nor show a copy to anyone. Kindly notify the
>sender by reply email. Opinions and information in this email which do not
>relate to the official business of The University of Queensland shall be
>understood as neither given nor endorsed by the University
>
>
>
>
>
>
>On 4/07/14 1:03 PM, "Peter Menkhorst" <> wrote:
>
>>Hello all
>>I think we need to be careful in assuming that orange legs and feet on
>>Pacific Black Ducks indicate hybridisation with Mallards. Brighter orange
>>legs is an indication of breeding condition in Black Ducks so we need to
>>consider other morphological indicators of hybridisation such as:
>>
>> ♂ has curled central tail feathers and variable white feathers in tail,
>>reduced facial stripes, warmer tones to breast feathers, the suggestion
>>of a
>>pale collar (not white) and orange-yellow legs and feet. ♀ resembles an
>>abnormally dark ♀ mallard with orange-yellow legs and feet.
>>
>>As Mike says, feral Mallards are very rare in Australia and confirmed
>>hybrids are almost unknown, in contrast to New Zealand where
>>hybridisation
>>is of real concern.
>>
>>Peter Menkhorst
>>
>>-----Original Message-----
>>From: Mike Carter 
>>Sent: Friday, 4 July 2014 12:30 PM
>>To: Nikolas Haass; Jim Tate; Kev Lobotomi; Russell Woodford;
>>
>>Cc: Peter Menkhorst
>>Subject: Re: [Birding-Aus] Duck
>>
>>A rather late entry to this debate. I have no doubt that Russell's bird
>>was
>>of feral origin, a hybrid farm-yard type duck.
>>
>>But the increasing occurrence of bright orange feet in otherwise
>>'perfect'
>>Pacific Black Ducks south-east of Melbourne is surprising, difficult to
>>explain and perhaps of some concern. Not so long ago I would count an
>>orange-footed bird as a Shoveler but can no longer rely on that as an ID
>>feature as more Black Ducks now show it. Surprising because Pacific Black
>>Ducks are abundant, Mallard are extremely rare and the larger free flying
>>farm-yard ducks very uncommon. As an illustration I took the attached
>>shot
>>showing Black Duck with orange feet on one of our recent surveys on a
>>wetland SE of Melbourne. I realise that some individuals have brighter
>>feet
>>than others but it seems to me that the brightness and frequency of
>>orange
>>feet in Black Ducks is increasing.
>>
>>Mike Carter
>>30 Canadian Bay Road
>>Mount Eliza  VIC 3930
>>Tel  (03) 9787 7136
>>
>>



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