Juvenile Herring Gull; extensive pale inner primary window, broad tail band, notched tertials, barred greater coverts and general lack of contrast (confined to upper tail)
Juvenile Yellow-legged Gull; indistinct inner primary window, dark based greater coverts, contrasting head, underparts and upper tail, darkish eye mask and in a separate view a tapering tail band
Monopsis crocicapitella (New one for farmlands if I've id it right)
Juvenile gulls and micro moths must be some people's idea of a nightmare. Here's a small tribute to that cause.