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 Forteiland gull research: breeding season 2018 report
5CY Lesser Black-backed Gull Black/Blue 3P with sub-adult marking in secondaries – 2018
IJmuiden Forteiland gull season 2018
Primary pattern comparison in Dutch adult Common Gulls
Marked Birds Database – Version 2.0.0 available

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Caspian Gulls at Terschelling - November 2017
The Mew Call
IJmuiden Forteiland gull research: breeding season 2018 report
Studying bill and eye characteristics in European Herring Gulls
Comparison of underwing primary patterns in Dutch adult Herring Gulls and Lesser Black-backed Gulls - May/June 2018
Ring-billed Gulls vs Common Gulls: comparison from a Dutch perspective- 201402
Herring Gull primary pattern comparison - May/June 2018
Primary pattern differences between juvenile European Herring Gulls and Lesser Black-backed Gulls - 20140707
Tertial spots in sub-adult and adult gulls
1cy Yellow-legged Gulls - 20130804

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