Monthly Archives: August 2013
1cy Yellow-legged Gull – 20130824
Black-headed Gull White EJC5 returns to Leiden – 20130824
1cy Lesser Black-backed Gull with pink bill – 20130823
SULA article: “MOULT AND SITE-FIDELITY OF HERRING GULL „ZDGA‟ BASED ON COLOUR-RING SIGHTINGS”
1cy Lesser Black-backed Gull Black R.S – 20130820
4cy Lesser Black-backed Gull Green Y.AMM – 20130813
1cy Yellow-legged Gulls – 20130813
IJmuiden – 20130811
1cy Yellow-Legged Gull and Caspian Gull – 20130810
