Probably ringed as pullus at Zeebrugge, Belgium, left, ring code Bruxelles L-92064. Ringed as pullus at Zeebrugge (51.20N 03.11E) on July 14 2000.
An individual lacking white tips on the outer primaries and a very small white mirror on the inner-flag of P10. There is black on both the lower and the upper mandible. The orbital ring is red and the iris is yellow without speckling. The red gonydeal spot doesn't continue on the upper mandible. Note the abraded and bleached greater coverts. P1 is still old (complete moult not started yet) and R6 (outermost tail-feathers) have some central black.