My "HE/SHE" Duck!

Al Hansen

Well-known member
My “He/She” Duck!

About six years ago when I first retired, I was sitting on the Rio Grande in January and doing what I like to do best----duck hunting. At the time I was having great success and had a nice bull sprig as my “other” duck, along with a Mexican, and three greenheads. The day was early and I was patiently waiting for one more drake mallard.
I had a subtle smile on my face because I was thinking of the check that I had just sent to Delta Waterfowl to help promote their ongoing program about taking only drakes. I, too, think that is a great idea.
Anyway, along came a single greenhead and with its wings cupped and feet outstretched it came into my spread of decoys just like you would see it in a movie. I dropped it with the first shot and Chili made quick work of the retrieve, thankfully. The current was quite strong and I’m glad she didn’t get caught up in that.
I was pouring a cup of coffee when she got back to me and then took it from her as I sat back to enjoy the sights and sounds that only a duck hunter can and does recognize. I started to look over this mallard and a “little red flag” went up in my mind. The more I looked at it the more confused I became.
This duck had curly tail feathers, a white ring around its neck, a green head, a black tail, the grey color that drakes are supposed to have on their backs, and it had the color of the drake’s beak but it had the brown blotches on the beak like a hen. Boy, was this confusing.
I did the next best thing and packed up for home. When I got to town I called the state waterfowl biologist and asked him if I could come over to show him something unusual. When I arrived, Tim checked the bird and said, “Al, I have never in my life seen anything like this. The only way we can know for sure what it is, is to open it up and look for the reproductive tracts.” So he commenced to open HER up. Yes, this was a hen mallard! Tim pointed out the ovaries to me.
I then got in touch with a federal waterfowl biologist, who lived in Ipswich, SD, and ended up next day UPSing the duck to him. Bobby Cox was doing a study on this phenomenon called, “SENESCENCE”. (It means: The Act or Process of Growing Old.)
In essence, this duck was so old that she began to produce testosterone instead of estrogen. Since that day in January, I have often wondered that if she had been banded, how old really was she? Would they have been able to read the band number if she was wearing that band all of those years? I have shot banded ducks with paper thin bands----just thinking! Anyway, I just thought that some of you might find this interesting.
Al

HeSheMallardDrakeorMaybeHen.jpg


He-Shebody.jpg


He-SheVeryConfusing.jpg


HeShesOvaries.jpg

 
There have been quite a few pictures of these old hen mallards showing up on the "Fuge" this season, more than I can remember. They are a neat bird.
 
I've shot some over the years like that late in the season...I've always assumed that they ate too many Cheetos during the summer.
 
Al, thanks for thoroughly documenting this and contacting 2 good biologists for a definitive answer. Thanks to Tim and Bobby for following up. Usually I see photos of these ducks as a bloody wet dead duck thrown into a pile on a snow bank or tailgate and only a picture of the side of the head. Your pictures document the important identification marks nicely.
 
pairofmallards.jpg


Here is a picture I took about 8 years ago at a zoo. Not quite as masculine as yours but as the song says "Girls will be boys and boys will be girls. It's a mixed up muddled up shook up world..."

Tim
 
I forwarded the thread to my wife, who is a practicing large animal vet currently completing her residency in theriogenology (big word for breeding). she isn't convinced... she's mentioned that there have been disagreements in the past between PhD Biologists and vets...

Here is what sHe had to say:

"The idea of senescence is interesting, however, the fact that they mentioned ovaries (plural or more than one) sent off a warning bell in my head.  In most avian species there is only ONE ovary while the male has TWO testes.  I will check this out and see if it holds true for the common mallard but that may also give an indication that maybe this is something else altogether...

The picture was not that clear to me."

****
A rare instance where the sometimes "volatile" home front becomes interested in the significant other's hobby :p
 
Interesting. I too have shot a bird similar to this some time back.

I wonder how this bird would be counted in a field check? What happens if you had already shot your limits on hen mallards and then shot this bird thinking Drake?

Mark W
 
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