Strange that you post that pic.... I'm originally from Lubbock, Texas.... and it has become a favorite stop for Canadian geese in the winter... Lubbock is a rather arid place
and most of the water around there is in playa lakes... shallow, flat areas that are slightly lower in elevation than the surrounding terrain, so that water collects in them, when (if) it rains. This is an internet picture of the edge of one, that might actually be in Lubbock...
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The geese have become a complete nuisance... I've seen these playa lakes in parks, where every bit of dry land around the lake is covered in geese. There are literally thousands upon thousands of them that call Lubbock "home" during the winter. It's amazing....