Whenever I stop at the gas station or store I look at the old factor pond across the road. The water is not pretty there. It looks brown and dirty. I wouldn't swim in it and I certainly wouldn't drink it.
Birds, on the other hand, don't care about all that. I've seen many cool birds near the dingy little pond.
Birds don't judge their habitat by how pretty it looks so neither should we. We can let the birds themselves provide the beauty!