ID: Mallard or Mallard X Black Duck?

To: "" <>
Subject: ID: Mallard or Mallard X Black Duck?
From: Ryu Callaway <>
Date: Thu, 21 Jul 2016 12:15:50 +0000
I have had a look at a large range of resources and still can't make up my 
mind. I have not been able to find all that much detail and descriptions seem 
to vary.
Photographed on the Gold Coast


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