(2 images) sub-adult LBBG, October 2001, Vuurtorenvlakte - Maasvlakte, the Netherlands. (pictures by Nils van Duyvendijk)

A bird with two moult waves in the wing. The upper-parts appear very dark, blackish-brown, not contrasting with the primaries. P10 has a small mirror, not reaching the edge of the inner-web and p9 is slightly abraded. 8 is very abraded with a protruding shaft. P7 was moulted very recently but is lacking a white tip anyway. P6 is pretty old again and the exact moult stage of the inner primaries is hard to determine, but it seems p1-p4 are neat flight-feathers with broad white tips and p5 is missing.
The bill has a small black bill-band.