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Pallas's Gull / Oman

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Old Tuesday 26th March 2019, 16:00   #1
Jose605
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Pallas's Gull / Oman

I believe there are all Pallas's at different stages (apart from the obvious Sootys and Terns in the background).

Could you please confirm?

Best,

Jose
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Old Tuesday 26th March 2019, 16:14   #2
Alan henry
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I think you are correct on the first 3 images but the last one is certainly not a Pallas's Gull, looks like an adult Lesser Black Backed to me.

Cheers

Alan
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Old Tuesday 26th March 2019, 16:16   #3
stuartelsom
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Fairly sure that only the first image refers to Pallas's Gull. All other large gulls are probably Heuglin's type, whilst the smaller darker gulls are Sooty, and the terns appear to be Greater Crested Tern.

Stu

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Old Tuesday 26th March 2019, 16:31   #4
Jose605
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Thank you both for the feedback!

Heuglin's are common in the area as well. So you're probably right, Stuart.

Cheers!

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Old Wednesday 27th March 2019, 05:50   #5
andyb39
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I wouldn't call the last one heuglini - back too light, head is too rounded, eye small and dark, doesn't look "mean" enough. Maybe an adult Steppe Gull (barabensis.
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Old Wednesday 27th March 2019, 12:53   #6
Jose605
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Thank you for your input, Andy.

Would Steppe be Caspian?

Cheers.
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Old Wednesday 27th March 2019, 13:48   #7
Richard Prior
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Originally Posted by Jose605 View Post
Thank you for your input, Andy.

Would Steppe be Caspian?

Cheers.
No, Steppe is Larus fuscus barabensis, so one of the Lesser Black-backed Gull subspecies, Caspian is a species in its own right.
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Old Wednesday 27th March 2019, 13:51   #8
Muppit17
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Thank you for your input, Andy.

Would Steppe be Caspian?

Cheers.
I would agree that it looks like a good candidate for barabensis but they are difficult to separate and the colour of the mantle is notorious for being light sensitive. I would need to see other features to confirm.

With IOC, barabensis is currently being lumped with Lesser black-backed Gull ie Larus fuscus barabensis whilst Caspian is regarded as a separate species in its own right Larus cacchinans.
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Old Wednesday 27th March 2019, 14:34   #9
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Got it, thanks for the explanation.

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