|female Long-tailed Duck Rotherhithe 29th July 2013|
3cy Yellow-legged Gull Rotherhithe, 1st August 2013. P8 to P10 are old second generation feathers. P5 is growing with P6 and P7 dropped. Typical moult for a 3cy at this time of year (they usually just have two or three older outer primaries).