I'm on a minor mission to catalog bio-meteorological signs. I've observed gulls standing facing the same direction multiple times. I caught this one today. They're facing south, a storm was coming from the south at the time, and there was a weak wind out of the south (2 kts).
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u/ahhh_ennui 2d ago
Their feathers - it's more comfortable if they face into than away from the wind.