Re: [cobirds] Possible Slaty-backed Gull, Larimer

2021-04-06 Thread Dave Cameron 
Thanks, Nick, for the explanation.  And, it saves me a trip!  

- Dave Cameron

On Tuesday, April 6, 2021 at 5:27:39 PM UTC-6 Nick Komar wrote:

> Sorry I meant to follow up. I read up on first-cycle Slaty-backed Gull 
> Identification. While this bird looked similar, a couple features in 
> particular ruled out Slaty-backed Gull. The outer wing (a.k.a. the hand) 
> was long like Herring and Glaucous-winged, rather than short. Also the bill 
> was very long with the curvature of the culmen well anterior to the 
> nostrils. In Slaty-backed, the bill is short with the curvature beginning 
> over the nostrils. Therefore I concluded that this bird was not 
> Slaty-backed but rather a hybrid Gw x herring. This hybrid combo is 
> becoming more frequent among our winter gulls, and is well known to appear 
> similar to slaty-backed gull in first cycle plumages. 
>
> I have been keeping an eye on the Larimer gull flock and have not seen 
> this bird again. 
>
> Nick Komar
>
> On Apr 6, 2021, at 4:48 PM, Dave Cameron  wrote:
>
> Has anyone had occasion to go search for this bird since the 28th?  Any 
> info as to whether it's still around would be appreciated.  Thanks!
>
>
> Dave Cameron
> Denver
>
> On Sunday, March 28, 2021 at 10:32:50 PM UTC-6 colima...@gmail.com wrote:
>
>> Most lariphiles agree some first cycle pale-headed gulls are 
>> challenging.  So much variation. 
>> Can you you elaborate on those “checked boxes” you mention?  
>>
>> Bruce Webb
>> Former Boulder resident 
>>
>> On Sun, Mar 28, 2021 at 11:42 AM Nicholas Komar  
>> wrote:
>>
>>> A first cycle large white-headed Gull at Horseshoe Reservoir in Loveland 
>>> (Larimer) seems to check most boxes for Slaty-backed Gull. See photos 
>>> below. Warning: this age/species combo is very difficult to confirm so may 
>>> not get confirmed in eBird or accepted by a records committee. But wanted 
>>> to share to give folks an opportunity to look for it. 
>>>
>>> -- 
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>>> .
>>>
>>>
>>>
>>>
>>> Nick Komar
>>> Fort Collins CO
>>>
>>> -- 
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>>> .
>>>
>> -- 
>> Bruce Webb
>> Granite Bay, California
>>
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>  
> 
> .
>
>

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Re: [cobirds] Possible Slaty-backed Gull, Larimer

2021-04-06 Thread Nicholas Komar 
Sorry I meant to follow up. I read up on first-cycle Slaty-backed Gull 
Identification. While this bird looked similar, a couple features in particular 
ruled out Slaty-backed Gull. The outer wing (a.k.a. the hand) was long like 
Herring and Glaucous-winged, rather than short. Also the bill was very long 
with the curvature of the culmen well anterior to the nostrils. In 
Slaty-backed, the bill is short with the curvature beginning over the nostrils. 
Therefore I concluded that this bird was not Slaty-backed but rather a hybrid 
Gw x herring. This hybrid combo is becoming more frequent among our winter 
gulls, and is well known to appear similar to slaty-backed gull in first cycle 
plumages. 

I have been keeping an eye on the Larimer gull flock and have not seen this 
bird again. 

Nick Komar

> On Apr 6, 2021, at 4:48 PM, Dave Cameron  wrote:
> 
> Has anyone had occasion to go search for this bird since the 28th?  Any info 
> as to whether it's still around would be appreciated.  Thanks!
> 
> Dave Cameron
> Denver
> 
>> On Sunday, March 28, 2021 at 10:32:50 PM UTC-6 colima...@gmail.com wrote:
>> Most lariphiles agree some first cycle pale-headed gulls are challenging.  
>> So much variation. 
>> Can you you elaborate on those “checked boxes” you mention?  
>> 
>> Bruce Webb
>> Former Boulder resident 
>> 
>>> On Sun, Mar 28, 2021 at 11:42 AM Nicholas Komar  wrote:
>>> A first cycle large white-headed Gull at Horseshoe Reservoir in Loveland 
>>> (Larimer) seems to check most boxes for Slaty-backed Gull. See photos 
>>> below. Warning: this age/species combo is very difficult to confirm so may 
>>> not get confirmed in eBird or accepted by a records committee. But wanted 
>>> to share to give folks an opportunity to look for it. 
>>> 
>> 
>>> -- 
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>>> You received this message because you are subscribed to the Google
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>>> * All posts should be signed with the poster's full name and city. Include 
>>> bird species and location in the subject line when appropriate
>>> * Join Colorado Field Ornithologists https://cobirds.org/CFO/Membership/
>>> --- 
>>> You received this message because you are subscribed to the Google Groups 
>>> "Colorado Birds" group.
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>>> email to cobirds+u...@googlegroups.com.
>>> To view this discussion on the web visit 
>>> https://groups.google.com/d/msgid/cobirds/763B2511-9B59-49AD-84E0-F7A3DCF28768%40comcast.net.
>>> 
>>> 
>>> 
>>> 
>>> Nick Komar
>>> Fort Collins CO
>>> 
>>> -- 
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>> -- 
>> Bruce Webb
>> Granite Bay, California
> 
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Re: [cobirds] Possible Slaty-backed Gull, Larimer

2021-04-06 Thread Dave Cameron 
Has anyone had occasion to go search for this bird since the 28th?  Any 
info as to whether it's still around would be appreciated.  Thanks!

Dave Cameron
Denver

On Sunday, March 28, 2021 at 10:32:50 PM UTC-6 colima...@gmail.com wrote:

> Most lariphiles agree some first cycle pale-headed gulls are challenging.  
> So much variation. 
> Can you you elaborate on those “checked boxes” you mention?  
>
> Bruce Webb
> Former Boulder resident 
>
> On Sun, Mar 28, 2021 at 11:42 AM Nicholas Komar  
> wrote:
>
>> A first cycle large white-headed Gull at Horseshoe Reservoir in Loveland 
>> (Larimer) seems to check most boxes for Slaty-backed Gull. See photos 
>> below. Warning: this age/species combo is very difficult to confirm so may 
>> not get confirmed in eBird or accepted by a records committee. But wanted 
>> to share to give folks an opportunity to look for it. 
>>
>> -- 
>> -- 
>> You received this message because you are subscribed to the Google
>> Groups "Colorado Birds" group.
>> To post to this group, send email to cob...@googlegroups.com
>> For more options, visit this group at
>> http://groups.google.com/group/cobirds?hl=en?hl=en
>> * All posts should be signed with the poster's full name and city. 
>> Include bird species and location in the subject line when appropriate
>> * Join Colorado Field Ornithologists https://cobirds.org/CFO/Membership/
>> --- 
>> You received this message because you are subscribed to the Google Groups 
>> "Colorado Birds" group.
>> To unsubscribe from this group and stop receiving emails from it, send an 
>> email to cobirds+u...@googlegroups.com.
>> To view this discussion on the web visit 
>> https://groups.google.com/d/msgid/cobirds/763B2511-9B59-49AD-84E0-F7A3DCF28768%40comcast.net
>> .
>>
>>
>>
>>
>> Nick Komar
>> Fort Collins CO
>>
>> -- 
>> -- 
>> You received this message because you are subscribed to the Google
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>> Include bird species and location in the subject line when appropriate
>> * Join Colorado Field Ornithologists https://cobirds.org/CFO/Membership/
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>> .
>>
> -- 
> Bruce Webb
> Granite Bay, California
>

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Re: [cobirds] Possible Slaty-backed Gull, Larimer

2021-03-28 Thread ColimaBirder 
Most lariphiles agree some first cycle pale-headed gulls are challenging.
So much variation.
Can you you elaborate on those “checked boxes” you mention?

Bruce Webb
Former Boulder resident

On Sun, Mar 28, 2021 at 11:42 AM Nicholas Komar 
wrote:

> A first cycle large white-headed Gull at Horseshoe Reservoir in Loveland
> (Larimer) seems to check most boxes for Slaty-backed Gull. See photos
> below. Warning: this age/species combo is very difficult to confirm so may
> not get confirmed in eBird or accepted by a records committee. But wanted
> to share to give folks an opportunity to look for it.
>
> --
> --
> You received this message because you are subscribed to the Google
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> * All posts should be signed with the poster's full name and city. Include
> bird species and location in the subject line when appropriate
> * Join Colorado Field Ornithologists https://cobirds.org/CFO/Membership/
> ---
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> .
>
>
>
>
> Nick Komar
> Fort Collins CO
>
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>
-- 
Bruce Webb
Granite Bay, California

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