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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Marked Birds Database – Version 2.0.0 available
1CY Leucistic European Herring Gull, brown aberration – September 2018
Marked Birds Database Manual
Marked Birds Database Manual – Working with life histories
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Marked Birds Database – Version 2.0.0 available
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Primary pattern differences between juvenile European Herring Gulls and Lesser Black-backed Gulls - 20140707
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Marked Birds Database - installation
Gull watching in the southern Lake Michigan region (USA) - 201402
1CY Herring Gull, Yellow-legged Gull and Lesser Black-backed Gull - 20140921
Marked Birds Database - Public release
Marked Birds Database - introduction
Adult Baltic Gulls, Stockholm - August 2015

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