Sep 28, 2011

Great Black-backed Gull and lots of Mew Gulls

On the 22nd of September we caught our first 1Y Great Black-backed Gull (Larus marinus) in the city centre of Bergen. We had seen this individual between the Herring gulls for about a week and it was on the top of our wanted list. Finally, on this Thursday it came too close when Christian was giving bread to the Herring Gulls and it was nicely hand cached. This actually makes it the first ever hand cached Great Black-backed Gull in Bergen. We have to admit that it was rather small (body mass: 1450 g and head+bill: 132,1 mm) and probably a female, but still the first!

Wing of Great Black-backed Gull JN600.Head of Great Black-backed Gull JN600.

The next day the total number of ringed 1Y Mew Gull reached one hundred. This fulfil one of our goals for the season and we immediately set another goal of two hundred 1Y Mew's. As writing we have already reached 120 much because we now are three active gull ringers in Bergen. Vegard Finset Fjeldheim has joined the team! One trained ringer more makes it possible to more quickly ring and measure the gulls when we have a window when they are catchable.

Our effort of catching 1Y Mew Gulls have also given us another reading. As our first reading (J6R1) this new was also seen by Alf Tore Mjøs. This time in Breiavatnet (a lake in the city centre of Stavanger) 49 days after ringing and 156 kilometres south.

J3R6 moving 156 kilometres from Bergen to Stavanger

J3R6 at Breiavatnet, Stavanger. Photo: Alf Tore Mjøs

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