Beautiful and sharp in-action photos! I always thought the red part of the lower beak was blood from eating all the fish innards!
RE: Seagulls at the Ice Edge
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Seagulls at the Ice Edge
Seagulls at the Ice Edge
Beautiful and sharp in-action photos! I always thought the red part of the lower beak was blood from eating all the fish innards!
Thank you for your encouraging comment. Unfortunately, I don't know anything about the red spot's function.
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I might have found the answer! It's appears to basically be a target that gull chicks can easily spot, so that they know where the food is. (Source)
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Thank you so much for the investigation and your answer, @mightpossibly
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