Help identifying duck breed needed!

New to the forum and new to raising ducks...only been at it about 5 months now. Got into it because a baby wood duck wandered into my yard and couldn't in good conscience let her go off into the wild of my urban neighborhood (as far as we can tell none of the siblings that we couldn't catch survived) so we took care of her until she took off. That led to us getting a pekin as a buddy for her while she was with us. Our wood duck took off about a month ago and we were gearing up to go get another pekin as a buddy when I got a call from someone I knew who was trying to re-home a female mallard that was roughly the same age as our pekin. Figure it was a win/win situation so I went ahead and picked her up, quarantined, and introduced the birds. Everything has been going great so far. Awesome personality and the ducks get along awesome except for some minor jealousy issues with my pekin (she gets a bit upset and territorial when I'm in the yard but no fighting or anything like that and easily solved by showing her some extra love).

The longer the new bird is here the more I'm questioning the ID. Looks just like a female mallard except for two key differences. One, we've got curled drake feathers. Seriously looks exactly like a female mallard except for the curled feather on the tail. Two, the "stripe" on the wing is a deep forest green rather than blue. Plus the vocalizations don't match female. So I'm pretty well convinced I have a male on my hands but what breed?

Definitely not mallard...no head colorings. I posted in one of the backyard ducks facebook groups I belong to and people are suggesting that its a juvenile drake rouen but (and please correct me if I'm wrong because I'm new at this) all the information I've managed to find on rouens tells me their coloration is blue and not green. Everything matches except for the color.

Some background on the duck: the original owner got 6 babies from a feed store and was told they were mallards (which is what she was specifically looking for) in early April of this year...she thinks they were roughly 10 days old when she took them home so that would put the ducks being born around late march maybe the first of April making this duck almost 6 months old now. In early May, the ducks got sick we think with a bacterial infection (they presented as being very wet when they hadn't been in water and then within hours they started to die). This duck was one of the healthy ones that was immediately quarantined...the original owner gave her to a second owner for safe keeping. All 5 of the other ducks died unfortunately and the original owner was heartbroken (this was her first time raising ducks) and the second owners agreed to keep the duck permanently. This duck never came down with whatever sickness killed the other ones. The second owners had the duck a few months when they realized they would be going back on the road very soon and their quite nomadic lifestyle would likely be extremely stressful for this type of animal. They did everything to find a good home including calling the humane society and luckily found out that I had ducks and was looking for a new duck to add to the family a few days before they had to take off for a job. So now the duck has joined my merry little band.

I've been googling and asking around and looking at every source I can think of and can't find anything that matches except for one duck: a Meller's Duck. But this does not make sense to me because the only information I can find on this breed is that its a rare duck, from Madagascar, and an endangered species. How would I accidentally wind up with one here in the Deep South? (I live in southern Mississippi and the bird was purchased from a feed store in south Louisiana).

So anyone here in the forums that can help me identify this duck? If this is an endangered species by some crazy stroke of weird luck that's need to know information for me! I tried to get a good picture but this was the best that I could get.

 

Thank you to you both! I couldn't get any better pics today because of the nasty weather but I will try to get better ones in the next few days. The coloring is definitely green...doesn't appear to be any other color at any other angle or lighting. And I had the same thought about the possibility of it being some strange hybrid or something because it just didn't make sense to me to have a random rare duck that was more than likely heavily monitored show up like this. Hopefully I can get the mystery solved! I'll post better pictures as soon as I have them!