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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Marked Birds Database – what’s coming up?
Marked Birds Database – Version 2.5.0 available
Marked Birds Database Manual – Working with bird relations
IJmuiden Lesser Black-backed Gulls fitted with GPS-loggers – update September 2019
Marked Birds Database – Version 2.4.0 available

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Ring-billed Gulls vs Common Gulls: comparison from a Dutch perspective- 201402
Gull behavior explained: Choking
Herring Gulls showing pair-bonding behavior
Mixed breeding pair Herring Gull x Lesser Black-backed Gull in IJmuiden 2017
Studying bill and eye characteristics in European Herring Gulls
Gull watching in the southern Lake Michigan region (USA) - 201402
Presumed adult hybrid Lesser Black-backed Gull x Yellow-legged Gull Green Y.BAM - 2014
Herring Gull feeding on feather lice of other gulls - 20151114

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