Just to add to your headache Marc I dug out this picture of a pipit with an fairly obvious eyestripe taken at the 'twite' site opposite Rhos on Sea golf club in November, 2009. The pipit cause a bit of debate among those birders present that morning without anybody coming to a conclusion! I note that the ringers manual cautions it is generally impossible to separate littoralis in the field, especially in autumn. Here's a pic of the Rhos bird, unfortunately I can only find this heads-on view.