Heard and just seen in a tree in mixed woodland. Is it a female or juvenile Blackcap?
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Very difficult to say from the limited view possible, But I think it is a female. Juveniles have very lose plumage at this early time of year and that would be visible, I think, if it were very young.
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Lat/Lng: 56.13245, -4.188555
OS grid ref: NS640954