saw this on the heritage coastal path in south wales
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The lack of black on the head shows it to be a juvenile, not yet moulted into adult plumage. Sex cannot be determined at this age, and can be tricky (in the field) even when fully moulted, as they are pretty much the same, so no sex for this one!
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Lat/Lng: 51.44952, -3.6135
OS grid ref: SS879735