PR-48 INDOPACO, 2024 (Wind Farm + Dot Changing Apparent Direction)

The lack of consistent rows in the first field could be a sign that it was under construction at the time. If so it would be very hard to locate. I'm going to check again looking specifically for one with consistent rows of 3+ turbines next to another and checking the dates as can be found.
 
But bear in mind that birds are well insulated! Looking at thermal imagery of birds, they sometimes appear pretty hot, sometimes pretty cold, though often with hot spots where they lack feathers (feet, eyes, beak).
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https://www.theguardian.com/science/2008/feb/06/1

This variability may have to do with how the camera/processor is adjusted (gain, I think I'm using that word correctly here!), how much the bird is fluffing its feathers to retain or release heat, how cold the air around it is, how hot or cold the background is and other factors I haven't considered.

My son and I tried to get some IR footage of birds in flight with his drone, but did not get anything useful -- maybe it is time to try again. But we'd not be able to match a bird at that altitude anyway, and that might be a factor -- a bird gliding at altitude where the air is cold is going to be doing all it can to retain body heat, and the outer surface of the feathers is going to be chilled by cold air blowing across them!

Said all that to say this -- I'd not rule out a bird just because it's cold in the image.
This is a topic that needs study.
Birds thermal signature from below and above could also be much different. From below it is being contrasted with the sky temperature, from below with the ground or water surface temperature.
Size of bird might also influence signatures, hummingbirds have smaller wings compared with something like an albatross. So a soaring bird over the sea would be mostly visible from above as wing surface (no warm feet as in the example here).
 
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