The
Common Murre, about the size of a duck. The two on the right are a breeding pair. The one on the left
is the "bridled"
form of the common Murre. I watched this trio for a while and finally
concluded the bridled morph is a breeding male trying to horn in on the
other males territory! He kept trying to get in between this pair but all
his advances were rebuffed by the one in the center (the female?) and he was
chased by the one on the right (the male?).
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