Unusual Bird: House Sparrow with grey, fluffy side patch.
This House Sparrow has been showing up at my feeders for a few months now. He has a patch of grey fluffy feathers on his right side. At first, I thought they were juvenile feathers that were going to fall off but they have continued to come back in strangely, although not quite as fluffy as they were initially. I’m curious about what is causing this. I have more pictures if you need them.
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One comment on “Unusual Bird: House Sparrow with grey, fluffy side patch.”
I also have pictures of house sparrows with a lot of get grey feathers and coloration. Do you have slate dark-eyed juncos in the area?
These two birds often produce hybrids, which results in these grey-ish house sparrows.