4 images: 2cy LBBG intermedius NOS 4105943, July 2004, Amsterdam, the Netherlands.
below 3 images: 2cy LBBG intermedius NOS 4105943, July 03 2004, Amsterdam, the Netherlands.
A Norwegian intermedius LBBG, ringed NOS
4105943, present in Amsterdam in mid-summer. Moult score
advanced, as all scapulars, all wing-coverts and tertials have been replaced
once by July, probably most feathers included in the moult at the wintering
grounds. The tail-feathers seem to be retained juvenile, as are the outer
primaries and secondaries.
After returning in NW Europe, the complete moult started and by early July, P1-P5 are fully grown second generation, P6 is growing, P7 is missing and P8-P10 are still juvenile. Together with the primary moult, wing-coverts are moulted as well, and the gap in the central greater coverts is obvious in the right wing.
below: 2cy LBBG intermedius NOS 4105943, July 10 2005, Amsterdam, the Netherlands.