Gulls in NW Europe

(last update: September 25, 2011 )

Herring Gull (argenteus) Y.AFC 1CY, 4CY & 10CY, August 2008, May 2011 & May 2017, IJmuiden & Heemskerk, the Netherlands.

Ringed Herring Gull Y.AFC from Forteiland, IJmuiden. Ringed by Fred & Kees as juvenile on June 30 2008.

The IJmuiden Ringing Team (Fred & Kees) have ringed again several Herring Gulls and Lesser Black-backed Gulls at Forteiland, IJmuiden in 2008. This time green darvic rings have been attached, starting with Y for borh species (so codes read
Early in the season, adults were caught at the nests and ringed, late June 2008 several juveniles were caught and ringed as well.

This page shows an example of birds from this IJmuiden project. All observations of ringed birds from this project can be sent to Kees Camphuysen at NIOZ, Texel (mail camphuys at nioz dot nl).

below: Herring Gull (argenteus) Y.AFC 1CY, August 14 2008, 3rd Haven - IJmuiden, the Netherlands.

Scapular Moult Score: Upper Scapulars (us, 3x central uus fresh, lus 2x missing) 0-25% 2nd generation; Lower Scapulars (ls) 0% 2nd gen; total scapular score: 0-25% 2nd generation.
Prims & Recs & Secs & tertials all juv.
Right side: gc & mc all juv (all visible). llc left all juv, possibly llc3 missing? lc all juv(all visible).

below: Herring Gull (argenteus) Y.AFC 4CY, May 06 2011, IJmuiden, the Netherlands.

Black in tail, brown on coverts in combination with large mirror on P10; typical combination for Dutch 4cy plumage.

Between these two dates, YAFC has been recorded over the last years dozens of times along the North Sea coast between Alkmaar - Den Helder.

below: Herring Gull (argenteus) Y.AFC 10CY, May 29 2017, Heemskerk, the Netherlands.

Breeding bird on Forteiland. P1 missing.