Gulls

species:

Herring Gull

scientific name:

Larus argentatus

notes:

Combination of rings, eventually with 1 or 2 horizontal lines.

note 1: during the summer 2001 some adult birds have been painted with yellow-red-green paint on underwings and belly.
note 2 : used colours : black, green, red, white, yellow and blue. The rings are unicolour sometimes with 1 or 2 horizontal lines (1 ring on the tarsus) OR little unicolour rings (2 or 3 on tarsus) or a combination of both.
note 3 : the aim of this study is to check the predation from Herring Gull on the tern-colony on Schiermonnikoog, NL now that Herring Gull egg-shaking has been stopped.

email sighting submit:

email sighting submit (2):

colour-ring type:

Legrings : combination of uncoded.

countries where ringed:

The Netherlands.