Matthias is forwarding the up to date history of both birds so I'll update the blog once he does.
The 1st winter ringed on a Kiel City roof in 2012 and seen on Llanddulas beach on 10th March 2013.
The adult bird seen today on Old Colwyn beach- ringed in 2010 on the same Kiel City roof!
The Kiel City Common Gull nesting colony from where both North Wales birds came from.
Young Common Gulls on the Kiel City Roof. How many will make it to North Wales?
Breeding adult Common Gull on the Kiel City roof- a good probability that it winters in North Wales.
The journey many of these birds make each winter where they also join Norwegian and Danish birds.