Lesser Black-backed Gull graellsii NL adult, May 29 2015, Katwijk, the Netherlands. Picture: Merijn Loeve.
Lesser Black-backed Gull, ringed as rooftop breeding adult in municipality Katwijk. Ringed by ringing team Roland-Jan Buijs, see BLOG BUIJS (in Dutch).
Black: P4-P10. Mirror: P10. PMS: 0.
Orbital: red. RUM: no. BOM: U. Speckling: ? / 1-5%.
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