The only thing I'm fairly certain of is that this is a female Scaup, Lesser or Greater isn't easy to say. I'll have to rely on others to decide.

In close-ups you can see it does have the blue bill of both the Lesser and Greater Scaup. Any definite ID from the shape of the head was difficult to tell from the images.

An onsite birder was sure it was a Greater, another kind of mumbled to themself and didn't exactly seem to agree. The one thing going for a Greater Scaup is that the bird was in salt water. I'll leave it to you to decide. Please feel free to post an ID opinion.

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