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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Herring Gull and Lesser Black-backed Gull portraits – May/June 2018
Lesser Black-backed Gull primary pattern comparison – May/June 2018
Herring Gull primary pattern comparison – May/June 2018
Lesser Black-backed Gull pair with 6 chicks – 20180611
4th-calendar year Lesser Black-backed Gull comparison – 20180518

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Studying bill and eye characteristics in European Herring Gulls
Gull behavior explained: Choking
Adult Lesser Black-backed Gull Green YBJB - 20180514
1cy Herring, Yellow-legged and Lesser Black-backed - 20130922
Ring-billed Gulls vs Common Gulls: comparison from a Dutch perspective- 201402
Lesser Black-backed Gull pair with 6 chicks - 20180611
Progression in feather growth in young Herring Gull Green YCDM
New Caspian Gull ID pages on Gull Research.ORG
Herring Gull and Lesser Black-backed Gull portraits - May/June 2018
Scoring primary feathers of Lesser Black-backed Gulls

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