Herring Gull (argentatus & argenteus)
(last update: February 11, 2013)
Herring Gull (argenteus) A.R adult, May 29 2015, Katwijk, the Netherlands. Picture: Merijn Loeve.
Herring Gull, ringed as rooftop breeding adult in municipality Katwijk. Ringed by ringing team Roland-Jan Buijs, see BLOG BUIJS (in Dutch).
Black: P6-P10. Mirror: P9-P10. PMS: 4.
Orbital: yellow. RUM: no. BOM: no. Speckling: 0%.
Bird with limited black in wingtip: deep tongue on P10, which ends in a steep curve. No sub-terminal black on P10. P9 mirror on both webs. Black on outerweb doens't reach primary coverts. P6 with broken band. No black on P5.