Herring Gull (argentatus & argenteus)(last update: February 11, 2013) |
|
Herring Gull 4CY, February 18 2014, Katwijk, the Netherlands.3rd gen flight feathers: adult-like inner and central primaries, no mirror on P10. Secondaries with white tips and some dark markings on centres. Much black in tail. Brown markings on many coverts. |