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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IJmuiden Gull Research Team season 2022 review
IJmuiden Gull Research Team season 2021 review
IJmuiden Forteiland gulls on Dutch TV – 20211022
IJmuiden Lesser Black-backed Gull GPS-project update: wintering locations and migration routes 2020 – 2021
Hybrid Lesser Black-backed Gull Green YCLD: from chick to breeding adult

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Ring-billed Gulls vs Common Gulls: comparison from a Dutch perspective- 201402
IJmuiden Gull Research Team season 2022 review
Scoring primary feathers of European Herring Gulls
New Caspian Gull ID pages on Gull Research.ORG
Status update on the presence of pseudo-mirrors and non-isolated mirrors in IJmuiden-ringed adult European Herring Gulls
Gull behavior: the forward posture
Presumed hybrid Lesser Black-backed Gull x European Herring Gull - 20120205
Adult American Herring Gulls, seen from a Dutch perspective - 201402
Trip report: Heermann's Gulls in San Diego
Scandinavian Herring Gulls, Stockholm - August 2015

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