Gulls to the Horizon

A blog about gull observations by a Dutch larophile

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Monthly Archives: December 2013

1cy Iceland Gull – 20131229

December 29, 2013 larus glaucoides larus glaucoides 1cy Leave a comment

Marked Birds Database: first use

December 21, 2013 Filemaker Pro marked birds database marker database programming Leave a comment

2cy Iceland Gull – 20090207

December 12, 2013 larus glaucoides larus glaucoides 2cy Leave a comment

1cy Iceland Gull – 20131208

December 8, 2013 larus glaucoides larus glaucoides 1cy Leave a comment

Little Gull – 20090530

December 3, 2013 larus minutus larus minutus adult 5 Comments

Little Gull – 20090322

December 3, 2013 larus minutus larus minutus adult Leave a comment

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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
1CY Leucistic European Herring Gull, brown aberration – September 2018

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Gull behavior explained: Choking
Studying bill and eye characteristics in European Herring Gulls
Pair-bonding behavior between adult Lesser Black-backed Gull and 2nd-calendar year Herring Gull
Visit to the gull colony of IJmuiden – 20160425
Adult Yellow-legged Gulls - Portugal 2014
Gull behavior: the forward posture
Pair-bonding behavior between adult Herring Gull and Lesser Black-backed Gull - 20151107
Caspian Gull performing long-call in Albatross posture
Reading ringed gulls in Leiden and Katwijk - 20171117
Herring Gulls showing pair-bonding behavior

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