I came across this bird by the side of the coast path in Pembrokeshire today. It did not fly or even attempt to escape but initially carried on grubbing through the leaf litter. I did not stay long to prevent stress to the bird but just took a quick shot with my phone and then left it alone. It also spread out its wings rather like when a bird is anting showing the wings were the same colours in the photo (eg no white or other patches). Its not a location I would expect to see either of the species I mention but the airflow has been a strong northerly one in recent days.
It looks like a Common Whitethroat to me. Note the rufous fringes to the wing feathers.
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Tony
My Flickr Photostream
Thankyou TeeJay. You are clearly right. I was confused by the wide tail and at first thought the white circle around the eye was unbroken. However looking again there is a small black mark at the 9 O'clock position consistent with Common Whitethroat. I'm still puzzled by its behavior and posture - maybe an exhausted migrant.