Gulls to the Horizon

A blog about gull observations by a Dutch larophile

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Monthly Archives: December 2017

Marked Birds Database – Version 1.15.0 available

December 27, 2017 marked birds database Leave a comment

Marked Birds Database – Version 1.14.0 available

December 9, 2017 marked birds database Leave a comment

Reading ringed gulls in Leiden – 20171204

December 4, 2017 chroicocephalus ridibundus chroicocephalus ridibundus adult Leave a comment

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Images of European Herring Gull Green YBXB – 2015 and 2018
Marked Birds Database update: new version scheduled for September 2018
1CY Hybrid Gull LBBG x YLG Green YCRK – June and July 2018
Adult Lesser Black-backed Gull Green YAKU with tertial spots in 2018
Comparison of underwing primary patterns in Dutch adult Herring Gulls and Lesser Black-backed Gulls – May/June 2018

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New Caspian Gull ID pages on Gull Research.ORG
Studying bill and eye characteristics in European Herring Gulls
Marked Birds Database update: new version scheduled for September 2018
Primary pattern differences between juvenile European Herring Gulls and Lesser Black-backed Gulls - 20140707
Database
Baltic Gull portraits, Stockholm - August 2015
Yellow-legged Gull and Caspian Gulls at Noordwijk
Gull behavior explained: Choking
About me
Gull watching in the southern Lake Michigan region (USA) - 201402

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