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Gull i.d. Oregon

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Old Saturday 18th January 2020, 17:10   #1
ducbucln
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Gull i.d. Oregon

I'm hoping someone can identify these gulls found in northern Oregon.
Thanks.
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Old Saturday 18th January 2020, 18:16   #2
KenM
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I’m thinking 1st Winters Glaucous Gull for 1.and Thayer’s Gull for 2.

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Old Saturday 18th January 2020, 18:49   #3
lou salomon
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1. is a 1st cycle glaucous-winged gull
2. a 1st cycle mew gull, Larus (canus) brachyrhynchus
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Old Saturday 18th January 2020, 19:22   #4
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Thank you Lou and Ken.
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Old Saturday 18th January 2020, 22:51   #5
KenM
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Quote:
Originally Posted by lou salomon View Post
1. is a 1st cycle glaucous-winged gull
2. a 1st cycle mew gull, Larus (canus) brachyrhynchus
....I thought 1st Winter Mew Gulls had Barred UTC’s and much darker brown remiges or is it more advanced moult?
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Old Saturday 18th January 2020, 23:24   #6
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Quote:
Originally Posted by lou salomon View Post
2. a 1st cycle mew gull, Larus (canus) brachyrhynchus
Then it's high time brachyrhynchus was split from canus!
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Old Sunday 19th January 2020, 01:33   #7
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Quote:
Originally Posted by KenM View Post
....I thought 1st Winter Mew Gulls had Barred UTC’s and much darker brown remiges or is it more advanced moult?
Mew's remiges (and tertials) usually do appear much darker than shown here, but sometimes they appear like this. Here's an example of of a similar bird (though maybe not quite as light):

https://macaulaylibrary.org/asset/19...438.1492698063

I also think the exposure and lighting are playing an effect in the gull in question.
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Old Sunday 19th January 2020, 16:30   #8
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Originally Posted by HeadWest View Post
Mew's remiges (and tertials) usually do appear much darker than shown here, but sometimes they appear like this. Here's an example of of a similar bird (though maybe not quite as light):

https://macaulaylibrary.org/asset/19...438.1492698063

I also think the exposure and lighting are playing an effect in the gull in question.
Cheers Headwest.
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