On an East Lothian beach last Friday I spotted a bird that I couldn't ID. It was about the size of a blackbird - maybe a tad smaller/slimmer but definitely significantly bigger than the stonechat that was perched nearby - and was perched on top of a post in a rather upright stance. The plumage was basically a pretty featureless all over brown, but with an definite reddish/russet tinge to it. I didn't notice any obvious markings like eyestripe/supercilium, spots or stripes on the breast etc. I failed to make a proper note of the leg colour, or the length and colour of the beak (that might be because they weren't particularly striking or unusual).
Scanning through the bird books since hasn't brought me to a sudden: "Aha, of course it was one of those!" moment. I had a go with the Merlin app but all the candidates it suggested were species I am quite familiar with.
Help me, UKC birders - you're my only hope!
Post edited at 21:06