Lesser Black-backed Gull (graellsii & intermedius)(last update: May 17 2015) |
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lbbg 1cy May lbbg 2cy January lbbg 3cy Jan-April lbbg sub-ad Jan-April lbbg adult January |
Lesser Black-backed Gull sub-adult, April 21 2015, IJmuiden, the Netherlands.Sub-adult (4CY); pattern on tail and secondaries. |