This is a 2cy lbbg ringed left green AH53, from Helgoland, Germany and ringed summer year Fresh coverts and upper tertials freshness indicated by the white fringe still show barring or a double anchor pattern. One single scapular appears completely greyish, but even in this feather there is a brownish tint. Clearly, fresh moulted third generation feathers in October may look pretty much like second generation feathers. Below you'll find a short list of recoveries of colour-ringed LBBG from Helgoland green rings with white code , a project run by Volker Dierschke.
About the LBBG colour-ringing project on Helgoland North Sea : The background is that the species started to breed on Helgoland only in 3 pairs and increased to c. So far, 12 birds were reported from elsewhere, some not far from Helgoland at the German and Dutch North Sea coast, some in France, Portugal and Morocco. The reporting rate is An interesting result is that LBBGs leave the colony and its neighbourhood much quicker than Herring Gulls, with most birds departing from mid August to early September and last departures in mid September.
They can be found in the Seine estuary and later in autumn, they move further south to Portugal, Morocco and along the coast of West Africa to Senegal, where rich feeding grounds can be found. The main diet is fish.
