Gulls to the Horizon

A blog about gull observations by a Dutch larophile

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Category Archives: Ring-billed Gull

Photos published in Lithuanian ‘Birds’ magazine – 201504

April 30, 2015 larus canus larus delawarensis Leave a comment

Tertial spots in sub-adult and adult gulls

April 28, 2014 chroicocephalus ridibundus chroicocephalus ridibundus 2cy chroicocephalus ridibundus 3cy chroicocephalus ridibundus adult larus argentatus larus argentatus 4cy larus argentatus 5cy larus californicus larus californicus 4cy larus canus larus canus 3cy larus delawarensis larus delawarensis 3cy larus smithsonianus larus smithsonianus 4cy larus smithsonianus adult tertial spots 13 Comments

Sub-adult Ring-billed Gulls, Lake Michigan region – 201402

March 17, 2014 larus delawarensis larus delawarensis 2cy larus delawarensis 3cy 1 Comment

Ring-billed Gulls vs Common Gulls: comparison from a Dutch perspective- 201402

March 6, 2014 larus canus larus canus 2cy larus canus 3cy larus canus adult larus delawarensis larus delawarensis 2cy larus delawarensis 3cy larus delawarensis adult Leave a comment

Adult Ring-billed Gulls, Lake Michigan region – 201402

March 4, 2014 larus delawarensis larus delawarensis 2cy larus delawarensis 3cy larus delawarensis adult 6 Comments

Gull watching in the southern Lake Michigan region (USA) – 201402

February 22, 2014 3 Comments

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  • IJmuiden Gull Research Team season 2022 review
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  • IJmuiden Forteiland gulls on Dutch TV – 20211022
  • IJmuiden Lesser Black-backed Gull GPS-project update: wintering locations and migration routes 2020 – 2021
  • Hybrid Lesser Black-backed Gull Green YCLD: from chick to breeding adult

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Top Posts & Pages

  • Ring-billed Gulls vs Common Gulls: comparison from a Dutch perspective- 201402
  • 3cy American Herring Gulls - 201402
  • Studying bill and eye characteristics in European Herring Gulls
  • Gull behavior explained: Choking
  • Database
  • Gull behavior: the forward posture
  • Identifying nearly-fledged Herring Gulls and Lesser Black-backed Gulls in the field
  • Sub-adult American Herring Gulls - 201402
  • New Caspian Gull ID pages on Gull Research.ORG
  • Herring Gull primary pattern comparison - May/June 2018

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