Gulls

species:

Herring Gull

scientific name:

Larus argentatus

notes:

White ring with black 4 alpha-numeric code (starting letter 'C').

note 1 : Cxxx (where x is a number or letter).
note 2 : 10000 white rings were delivered 1993-2003.
note 3 : many rings have also small text MUS FINLAND or MUS Z FINLAND.
note 4 : recent years some small check marks were added in the code (spots, underlines). Please, report them also.
note 5 : a similar project exists on Lesser Balack-backed Gull. The LBBGull c-ringing-project has been very successful. In ten years we have got almost 70000 reads from 4000 individuals. Now about 8000 reads/1000 individuals are made yearly. Before read ringing there were only 2000 found (about 50 ones/year) from 50.000 metal ringed LBbGs. The population of nominate LBBG (L. fuscus fuscus) has been strongly decreasing in Finland. It crashed to half of the one of the 1970’s and the bird was taken to the Red Book of Finnish Birds.

website sighting submit:

Luomus

email sighting submit:

website information:

http://www.fmnh.helsinki.fi/birding.

colour-ring type:

Legring : one, coded.

colour-ring colour (of the c-ring):

White [W]

colour-ring code (of the c-ring):

Four alpha-numeric code (4 letters/numbers).

countries where ringed:

Finland.

First letter/number (of the c-ring):