CS78 said:
Ive done a few wetlands with success. There's lots of variables and a lot of it cant be addressed without looking at the actual property.
It sounds like you have a pretty good source of water which is 2/3rds of the battle. Will you be able to back up enough land to attract birds without pushing water onto your neighbors.
What is the grade of the land? Ideally, you want it to be flat enough to hold water between 4"-12" deep.
If you're serious, the first thing I do is go out with a rotary laser level and flag off your pond. Figure out how much levee it's going to take to flood how much property you want wet.
Bigger isn't always better. If there's already birds in your area, I wouldn't get crazy with size. A 1 acre hole with 50 birds is often much more productive than 20 acres with 200 birds.
Can you dedicate the land to ducks year round? I don't mean keep it flooded. I mean, do you have a farmer you have to work with? If you can avoid having to deal with crops, it'll be a lot easier. Farmers love to complain about "all that mud".
I think I have the perfect situation honestly. My family has about 700 acres maybe a half mile from the lake. Very flat and it is all farmed except on 10 acre piece that has a little drainage through it and covered with trees. It forms a little creek that runs under highway 309. Just as the rain water approaches the treeline, there is a small depression(the water is diverted that direction by the farmer's turnrows) There is one little low spot that holds water after a good rain, and it might stay there all winter(maybe 100 ft by 50 ft}
I was thinking about getting a bulldozer to push out about an acre just to enlarge the existing low spot. Any over flow would just go into the existing creek and on to the Trinity river.
Every year after we have enough rain, you can walk down there and ducks are sitting on the small puddle of water. Maybe they run from the hunters at the WMA.