I think that it has changed in two ways and both of them spell more ducks to the north and more ducks to the west.
I just wanted to show this map to guys who think that it is absurd lunacy to say that ducks that are in Ill. will actually go to OKlahoma instead of come to us. I know several guys think that is idiotic and ridiculous.
But look at this map, and see if it may make you think a little differently.
Each yellow and each green arrow and line are exactly the same length.
This makes me ask myself, why wouldn't they if we have no water?
