Gulls to the Horizon

A blog about gull observations by a Dutch larophile

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5CY Lesser Black-backed Gull Black/Blue 3P with sub-adult marking in secondaries – 2018

November 12, 2018 larus fuscus graellsii larus fuscus graellsii 5cy larus fuscus graellsii adult Leave a comment

IJmuiden Forteiland gull season 2018

October 23, 2018 hybrid LBBG x YLG larus argentatus larus argentatus 1cy larus argentatus adult larus fuscus graellsii larus fuscus graellsii 1cy larus fuscus graellsii adult Leave a comment

Primary pattern comparison in Dutch adult Common Gulls

October 22, 2018 larus canus larus canus adult Leave a comment

Marked Birds Database – Version 2.0.0 available

September 20, 2018 marked birds database Leave a comment

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

September 17, 2018 larus argentatus larus argentatus 1cy leucism Leave a comment

Marked Birds Database Manual

September 16, 2018 marked birds database Leave a comment

Marked Birds Database Manual – Working with life histories

September 2, 2018 marked birds database Leave a comment

Marked Birds Database Manual – Working with observers

September 2, 2018 marked birds database Leave a comment

Marked Birds Database Manual – Using the Observation Details screen

September 2, 2018 marked birds database Leave a comment

Marked Birds Database Manual – Working with images

September 2, 2018 marked birds database Leave a comment

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Recent Posts

  • Visit to the gull colony of IJmuiden – 20190315
  • Marked Birds Database – Version 2.2.0 available
  • Great Black-backed Gulls and Herring Gulls – 20190215-16
  • Reading ringed Lesser Black-backed Gulls in Morocco – January 2019
  • IJmuiden Lesser Black-backed Gulls in Morocco – January 2019

Archives

  • March 2019 (2)
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  • February 2018 (5)
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  • December 2017 (3)
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  • December 2013 (6)
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  • December 2011 (4)
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Categories

  • American Herring Gull (10)
  • audouin's gull (1)
  • Baltic Gull (13)
  • Behavior (25)
  • Black-headed Gull (59)
  • Black-legged Kittiwake (2)
  • Books (1)
  • California Gull (3)
  • Caspian Gull (30)
  • Common Gull (22)
  • Database (50)
  • Glaucous Gull (6)
  • Glaucous-winged Gull (1)
  • Great Black-backed Gull (6)
  • Heermann's Gull (2)
  • Herring Gull (161)
  • hybrid HG x LBBG (3)
  • hybrid LBBG x HG (2)
  • hybrid LBBG x YLG (9)
  • hybrid YLG x HG (1)
  • hybrid YLG x LBBG (4)
  • Iceland Gull (15)
  • Kittiwake (1)
  • Kumlien's Iceland Gull (1)
  • Lesser Black-backed Gull (132)
  • Little Gull (3)
  • Mediterranean Gull (4)
  • News (1)
  • Publications (1)
  • Relict Gull (1)
  • Research (1)
  • Ring reading (2)
  • Ring-billed Gull (6)
  • Scandinavian Herring Gull (11)
  • Slaty-backed Gull (2)
  • Slender-billed Gull (1)
  • Sound recording (3)
  • Thayers Gull (6)
  • Travels (8)
  • Videos (1)
  • Viking Gull (1)
  • Western Gull (2)
  • Yellow-legged Gull (27)

Top Posts & Pages

  • Studying bill and eye characteristics in European Herring Gulls
  • Yellow-legged Gulls - 20131008
  • Gull watching in the southern Lake Michigan region (USA) - 201402
  • 3cy Yellow-legged Gull - 20131008
  • Yellow-legged Gulls and gulls with yellow legs at Katwijk
  • Marked Birds Database - introduction
  • Return of pink Black-headed Gull to breeding colony - 20150306
  • Gull behavior: the forward posture
  • Ring-billed Gulls vs Common Gulls: comparison from a Dutch perspective- 201402
  • Gull behavior explained: Choking

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