Gulls primary wing-tip patterns

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Variations of the primary wing-tip pattern of large gulls such as Vega Gull are various and it can be said that each individual is all different. However, this primary wing-tip pattern has a characteristic in each species and this is one of the important information to judge the species. A purpose of this site is to see the variety of variations of the primary wing-tip pattern of large gulls.

New Entry

Vega Gull #24

  • Seguro-kamome : Japanese name
  • Larus vegae vegae : Scientific name
  • Imperial Palace moat Hibiya : Field
  • 2017/02/10 : Date
  • right wing : Sample wing
  • 100% : Confidence of ID


very white and beautiful vegae. standard primaries pattern of vegae.
 Vega Gull wing-tip pattern Vega Gull Vega Gull

Please let me know if you find any mistakes of judging species by leaving a message on the Gull individual page.

2017/05/09

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Mew Gull #16

  • Russian Common Gull
  • Roshia kamome : Japanese name
  • Larus canus heinei : Scientific name
  • Imperial Palace moat Hibiya : Field
  • 2017/03/03 : Date
  • left wing : Sample wing
  • 10% : Confidence of ID


Small white mirror on P9. Small white moon on P7. Greenish tinge bill with complete dark subterminal bar. I think that this bird is a heinei. But I’m not sure.
 Mew Gull wing-tip pattern Mew Gull Mew Gull

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2017/03/15

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Mew Gull #15

  • Russian Common Gull
  • Roshia kamome : Japanese name
  • Larus canus heinei : Scientific name
  • Imperial Palace moat Hibiya : Field
  • 2017/02/17 : Date
  • right wing : Sample wing
  • 50% : Confidence of ID


Small white mirror on P9. Small white moon on P7. Bill with complete dark subterminal bar.
I think that this bird is a heinei. But I’m not sure.
 Mew Gull wing-tip pattern Mew Gull Mew Gull

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2017/02/23

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Mew Gull #13


This Mew Gull has very interesting primaries pattern.
It has long white moon and additionally small white mirror on P8.
Is this a kamtschatschensis? I’m not sure.
 Mew Gull wing-tip pattern Mew Gull Mew Gull

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2017/02/17

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Mew Gull #12


White mirror on primary no.8. About 10% kamtschatschensis have a mirror on P8 inner web by “DUTCH BIRDING V38”.
 Mew Gull wing-tip pattern Mew Gull Mew Gull

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2017/02/16

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Heuglin’s Gull taimyrensis #3

  • Taimiru-seguro-kamome : Japanese name
  • Larus heuglini taimyrensis : Scientific name
  • Imperial Palace moat Hibiya : Field
  • 2016/03/21 : Date
  • right wing : Sample wing
  • 100% : Confidence of ID


I’m not sure, which is this vegae or taimyrensis. But this has eight black part on primaries and upperparts look like little black.
 Heuglin’s Gull taimyrensis wing-tip pattern Heuglin’s Gull taimyrensis Heuglin’s Gull taimyrensis

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2016/05/15

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Vega Gull #23

  • Seguro-kamome : Japanese name
  • Larus vegae vegae : Scientific name
  • Imperial Palace moat Hibiya : Field
  • 2016/03/08 : Date
  • left wing : Sample wing
  • 100% : Confidence of ID

*** I am working on translating Japanese articles into English in order, so please wait.***
Vega Gull wing-tip pattern Vega Gull Vega Gull

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2016/05/14

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Black-tailed Gull #2

  • Umineko : Japanese name
  • Larus crassirostris : Scientific name
  • Imperial Palace moat Hibiya : Field
  • 2016/03/08 : Date
  • right wing : Sample wing
  • 100% : Confidence of ID


Black-tailed Gull usually lacking mirror on P10. But this one has two mirrors on P10 each wing.
 Black-tailed Gull wing-tip pattern Black-tailed Gull Black-tailed Gull

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2016/05/14

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Slaty-backed Gull #6

  • O-seguro-kamome : Japanese name
  • Larus schistisagus : Scientific name
  • Imperial Palace moat Hibiya : Field
  • 2016/01/17 : Date
  • right wing : Sample wing
  • 100% : Confidence of ID

*** I am working on translating Japanese articles into English in order, so please wait.***
Slaty-backed Gull wing-tip pattern Slaty-backed Gull Slaty-backed Gull

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2016/05/08

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