Desert Duck Hunting

So I have been trying my hand at waterfowling this winter while on break from my studies at the university. The problem with waterfowling in the Sonoran Desert region is that ducks have particulars about where they land, and the desert isn't usually one of their preferred habitats. Arizona does get ducks, we get them here and there. Usually the golf courses have little puddles filled with ducks and then there are the parks in the area are crawling with ducks as well. Out where ducks can be legally taken is a different story. Without giving away too many of my secrets, I will explain the essentials of hunting ducks in the desert.
First of all you must locate water sources. Typically these are cattle stock tanks used to get water to thirsty bovines. Ducks will come to these every now and then (if you're lucky). So what you must do is you have to take your shotgun loaded with some fairly large shot and a steel approved full choke and carefully ambush your game. This requires some stealth and some careful shooting. The first problem arises in locating a duck. If you by chance come across a puddle with a duck or two or 50 in it you have the immediate problem of being spotted and busted. If you are busted it is game over, you lose. Shotguns can do some great things, but they can't and shouldn't be used to try and take ducks at 85 - 90 yards out, especially if you are using steel, as the steel doesn't have the inertia at long range. The next problem is getting close enough to a position from which you can start shooting. You do not want to have large mesquite trees in your way once you coax the ducks off of the puddle, but you need a tree or two to mask your approach in getting into position. Once you do find a suitable spot and you're no further than 40-50 yards then you may, if the situation is right, commence firing. Be aware that the ideal range to start shooting is somewhere in the range of 20-30 yards as a missed shot at 45+ yards will usually mean that the other ducks (if applicable) will be out of range as soon as the first shot beats out on the water. If you can't get to within 20-30 yards, use #2 shot in a 3 inch (or bigger shell) for the best opportunity to harvest more ducks. The third problem that arises in such a situation is retrieving ducks. If you're out quail hunting and you have a wimpy spaniel or even worse a girly little pointer, you will likely have to wait for 5 - 10 minutes (up to 30 if the wind isn't very strong) for the bird to blow to the other side of the puddle.
Anyways, if you so choose to go out and try my proven technique, let me know how it goes.
Enjoy the photos.