Photo 2: LBBG sub-adult, July 15 2001, IJmuiden, the Netherlands. 

Again probably a 4cy LBBG, a plumage where immature and adult-like features are combined. Note the advanced adult-like upper-parts and entire grey wing (although a few very old coverts show a brown hue). The primaries appear rather immature; lacking the white tips and p10 shows no mirror (but the mirror may be worn away already). The tail is blocked white-black: R5 has a black band while the other tail-feathers are white 3^rd generation feathers. The legs are adult yellow and the bill has no black markings. The iris is speckled (or 'peppered') on a greenish base. The old tertials show no white tips and some are brown centred.