Lesser Black-backed Gull (graellsii & intermedius)

(last update: May 17 2015)

Lesser Black-backed Gull graellsii TS1 6CY & 19CY, April 2002 & April 2015, Maasvlakte-Europoort, the Netherlands. Picture: Merijn Loeve & Mars Muusse.

Ringed as pullus in 1997 at Maasvlakte - Dintelhaven, now in 6CY and 19CY.

Lesser Black-backed Gull graellsii TS1 19CY, April 14 2015, Maasvlakte-Dintelhaven, the Netherlands. Picture: Merijn Loeve.

High fidelity to native location. Together with partner ZW-KU.

Lesser Black-backed Gull graellsii TS1 6CY, April 22-29 2002, Maasvlakte-Dintelhaven, the Netherlands. Picture: Mars Muusse.

Adult ringed, left green TS1. A very tidy bird, lacking moult gaps in the scapulars and coverts. Note the brown hue on the inner and central greater coverts. The primary tips are relatively fresh. Note the small dark hint on the upper mandible. Note also the difference in age in the inner median coverts, with brown hued feathers between the neat grey rows. In this case, the code of the ring turned slightly yellow.