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House sparrows (and purple finches) are actually being crowded out by the house finch across North America. The house finch competes aggressively for nesting sites. But it's a pretty little bird so I don't expect any anti-house finch sites to pop up.



I can't speak for anyone else but sparrows are far and away the most common bird I see.

I mean I'll grant that I like looking at blue jays despite them also being notoriously aggressive.




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