Thanks, Edge.

I did conclude that this distinctive pattern was possibly a variation to be found on some Blue-winged Teal, although I had never before noticed it. This individual showed this unusual (for me) pattern very distinctly. When I started examining other male BWTE I did begin to see evidence of this pattern, but to a much lesser degree than the subject bird. Usually when I am viewing hundreds of teal, I tend to pass over them rather quickly (trying to find something different). I guess I need to slow down and take my time surveying the flocks!

Garganey would be nice, wouldn't it!

I am still looking for the Eurasian Wigeon or a Common Teal (European/Asia variety of our Green-winged Teal. Perhaps I will see one (some) of these some day!

Larry Lade
Saint Joseph, MO
gcrownkinglet AT yahoo DOT com

--- On Mon, 3/30/09, Edge <[log in to unmask]> wrote:
From: Edge <[log in to unmask]>
Subject: Re: Odd Teal
To: "Larry Lade" <[log in to unmask]>
Cc: [log in to unmask]
Date: Monday, March 30, 2009, 5:11 PM

Larry, et al.,

I've observed this before in BWTE at Eagle Bluffs CA.  It is a striking feature.  I wanted to learn more about it.

Fortunately, I have a copy of THE BLUE-WINGED TEAL, Its ecology and management, by Logan J. Bennett, Colletiate Press, Inc., Ames, Iowa 1938. This book is based on Dr. Bennett's Ph.D dissertation research.

Below is what I found.

p. 8:

PLUMAGE VARIATIONS

Kennard (1919) described a sub-species of the Blue-winged Teal.  The promulgated name was Querquedula discors albinucha.  The basis for the description was the white crescent of the male in nuptial plumage extending over the eyes and joining at the back of the head to form a white nuchal spot in birds that apparently nested in the southern part of the United States.  This subspecific determination was not accepted by the American Ornithologists' Union (Oberholser, 1921) on the basis that the evidence presented indicated a difference of age or a color phase.  The author examined several hundred specimens from Mexico and the United States.  It was common to find specimens with the white crescent extending back over the eyes and joining.  On some specimens the feathers had to be parted before the few white feathers extending backward could be seen.  On other specimens the markings were quite distinct.  The author confirms the opinion of the American Ornithologists' Union that the presence of the white nuchal spot is merely a variation in plumage coloration.  


Now, let's find a Garganey in Missouri!
Bodacious birding to all,

Edge Wade
Columbia, MO





On Mar 30, 2009, at 3:48 PM, Larry Lade wrote:

http://www.flickr.com/photos/11503968@N00/3399060559/

------------------------------------------------------------
The Audubon Society of Missouri's Wild Bird Discussion Forum
To unsubscribe or change subscription options:
https://po.missouri.edu/cgi-bin/wa?SUBED1=mobirds-l&A=1