Gulls to the Horizon

A blog about gull observations by a Dutch larophile

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Tag Archives: larus argentatus

Final visit to the IJmuiden Forteiland colony this season – 21090826

August 27, 2019 larus argentatus larus argentatus adult Leave a comment

Suspended primary moult in adult European Herring Gulls – 20190617

June 23, 2019 larus argentatus larus argentatus adult Leave a comment

4cy European Herring Gull Green YCDZ – May/June 2019

June 11, 2019 larus argentatus larus argentatus 4cy Leave a comment

Adult European Herring Gull Green YCUZ with Thayeri-pattern on P9 and P10 – 20190703

June 4, 2019 larus argentatus larus argentatus adult Leave a comment

Visit to the gull colony of IJmuiden – 20190506

May 9, 2019 larus argentatus larus argentatus adult larus fuscus graellsii larus fuscus graellsii 4cy larus fuscus graellsii 5cy larus fuscus graellsii adult Leave a comment

Visit to the gull colony of IJmuiden – 20190429

May 2, 2019 hybrid LBBG x YLG hybrid LBBG x YLG adult larus argentatus larus argentatus adult larus fuscus graellsii larus fuscus graellsii adult Leave a comment

Visit to the gull colony of IJmuiden – 20190423

April 27, 2019 hybrid LBBG x YLG hybrid LBBG x YLG adult larus argentatus larus argentatus adult larus fuscus graellsii larus fuscus graellsii adult Leave a comment

Visit to the gull colony of IJmuiden – 20190415

April 22, 2019 larus argentatus larus argentatus adult larus fuscus graellsii larus fuscus graellsii 5cy larus fuscus graellsii adult Leave a comment

Visit to the gull colony of IJmuiden – 20190408

April 11, 2019 larus argentatus larus argentatus adult larus fuscus graellsii larus fuscus graellsii adult 2 Comments

Visit to the gull colony of IJmuiden – 20190329

March 31, 2019 hybrid LBBG x YLG hybrid LBBG x YLG adult larus argentatus larus argentatus adult larus fuscus graellsii larus fuscus graellsii adult Leave a comment

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1CY Caspian Gull Red HHT0 – 20191110
IJmuiden Lesser Black-backed Gulls fitted with GPS-loggers – update November 2019
Marked Birds Database – what’s coming up?
Marked Birds Database – Version 2.5.0 available
Marked Birds Database Manual – Working with bird relations

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1CY Herring Gull, Yellow-legged Gull and Lesser Black-backed Gull - 20140921
IJmuiden Lesser Black-backed Gulls fitted with GPS-loggers – update November 2019
Reading ringed Lesser Black-backed Gulls in Morocco - January 2017
Announcing the release of the Marked Birds Database
Suspended primary moult in adult European Herring Gulls Larus argentatus argenteus of the Dutch colony of IJmuiden Forteiland
Mixed breeding pair Herring Gull x Lesser Black-backed Gull in IJmuiden 2017
2CY Iceland Gull and Glaucous Gull - 20170115
IJmuiden Herring Gulls at Blaringhem landfill, France - October 2016
Identifying nearly-fledged Herring Gulls and Lesser Black-backed Gulls in the field

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