House Sparrow
Passer domesticus
Notes:

House sparrows occasionally stop by. I do not allow them to nest in the yard. Usually, I only put sunflower seeds in the seed feeder. They don't seem to care for those. If I put almost anything else, it seems to attract them.

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Till now man has been up against Nature; from now on he will be up against his own nature.
Dennis Gabor
Inventing the Future, 1964