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 Lesser Black-backed Gull GPS-project update: website live & returning adults
Marked Birds Database – Version 2.7.0 available
Visit to the gull colony of IJmuiden – 20200316
IJmuiden Lesser Black-backed Gull GPS-project update: wintering young and returning adults
Marked Birds Database – Version 2.6.0 available

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IJmuiden Lesser Black-backed Gull GPS-project update: website live & returning adults
Studying bill and eye characteristics in European Herring Gulls
Marked Birds Database – Version 2.7.0 available
New Caspian Gull ID pages on Gull Research.ORG
Database
Yellow-legged Gulls (lusitanius) in Spain - November 2019
IJmuiden Lesser Black-backed Gulls fitted with GPS-loggers update: YCXJ has arrived in Málaga, Spain
Ring-billed Gulls vs Common Gulls: comparison from a Dutch perspective- 201402
1CY Black-headed Gull with an extra 'foot' - 20151226
Marked Birds Database update - a new approach

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