Ringed as pullus at Zeebrugge, Belgium, left, ring code Bruxelles L-92064, ringed as pullus at Zeebrugge (51.20N 03.11E) on June 16 2000.
An individual lacking white tips on the outer primaries and a very small white mirror on P10. There is a black line on the upper mandible. The orbital ring is red and the iris is pale yellow without speckling. The red gonydeal spot doesn't continue on the upper mandible. Note the abraded and bleached greater coverts and the lesser coverts in the carpal edge (outermost lesser coverts). P1 is still old (complete moult not started yet). Based on direct comparison to its partner, this is a male (code M1).