COBirders,

 

In response to David Alcock's query about an unusual Mallard he
photographed, my 0.2 cent's worth of speculation is:  Mallard + a pinch of
Peking.

 

Leon Bright

Pueblo

 

From: [email protected] [mailto:[email protected]] On Behalf
Of David Alcock
Sent: Monday, March 07, 2011 3:34 PM
To: cobirds
Subject: [cobirds] Another aberrant duck (03/06) - Clear Creek past I70 -
Jefferson County

 

Coincidentally to, or perhaps as a result of, all the thought provoking
discussion of ducks, hybrid ducks, and their plumages last week I happened
to notice a Mallard that wasn't quite right on Saturday morning.  The bird
was swimming with a few other Mallards just south of the trail, right where
the Rusty Blackbirds hung out last year.  (No Rustys BTW).   

 

The head, neck ring (strong but incomplete), and breast all seemed good for
an adult male Mallard.   The back and underside were mostly covered in brown
feathers edged in creamy-buff - with the back appearing more uniform than
the undersides.  Scapulars seemed all Mallard to me, thanks to everyone that
have chimed in on the detailed email string for the Mallard - Black Duck
discussion.  

 

My guess is this was some kind of an incomplete or delayed molt.   That
seems the most likely scenario, but finding it smack-dab in the middle of
alternate plumage would seem the least likely time to have an early or late
molter, unless it was an incomplete molt that had been abandoned.  If anyone
has a chance to take a look at the pictures I got of this bird and would
like to reply directly to confirm or contradict that idea I would welcome
the response.  

 

http://daveabirding.blogspot.com/2011/03/duck-of-different-color.html

Thanks,

-- 
David Alcock
Broomfield, CO
http://daveabirding.blogspot.com/

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