Date: 2/7/18 2:42 pm
From: Joe Roller <jroller9...>
Subject: Re: [cobirds] Hybrid ducks mystery
First, as a brand new birder, welcome to this great pastime, Karen!
And thanks for your good question.

Some would label those funky birds
"Mallard (Domestic type)" which is a checkbox on the eBIrd list.

My personal name for them is "ducks of uncertain heritage."

In the Sibley field guide and some others, there is a drawing of similar
birds in the
"domestic duck" section.

Keep on birding'!
Joe Roller, Denver

To paraphrase an old saw -
"Its a wise duckling who knows who his father is."

On Wed, Feb 7, 2018 at 8:23 AM, Karen Strong <kstrong1109...> wrote:

> Please forgive my ignorance - I'm a brand new birder & have only been
> observing for a little over a month.
>
> I saw these ducks yesterday (2/6/18) in the pond in Prospect Park, Wheat
> Ridge. My best guess is that they are Mallard-Northern Shoveler hybrids.
> They resemble male Mallards, in that they have green heads, yellow bills,
> and those curly "butt" feathers (I'm sure there's a more proper term for
> those). But they were significantly larger than a Mallard they paddled by
> - they were about the size of a cackling goose that was also nearby. And
> then there are those white chest markings. Northern Shovelers have white
> chests, and the front duck's bill definitely looks Shoveler-like in shape.
> But Northern Shovelers are even smaller than Mallards. Could the offspring
> of a Mallard-N. Shoveler mating be larger than either species? Do these
> species even "commingle"?
>
>
> <https://lh3.googleusercontent.com/-NiB2TQd-V00/WnsY4grz4cI/AAAAAAAACHw/rt1YahlKDXULyHpRseQAIOS-c7cE2ObugCLcBGAs/s1600/2.6.18%2Bodd%2Bducks.jpg>
>
> Thanks to anyone who can enlighten me!
>
> Karen Strong
> Conifer, CO
>
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