Compare the Lake Henry bird to these photos of
Rock Sandpiper: https://macaulaylibrary.org/asset/312705731
and Purple Sandpiper: https://macaulaylibrary.org/asset/433376671

In my opinion, its wing stripe looks better for Purple. But I have
basically no experience with either species. Like most of us, I'm waiting
for the experts to look at the photos.

Evan Carlson
Pueblo

On Fri, Oct 7, 2022 at 2:39 PM Joey Kellner <[email protected]> wrote:

> As for bill color, I defer to someone familiar with young Rock Sandpipers
> to determine if the extent and coloration is in the norm for that species
> or if this would indicate a Purple Sandpiper instead.
>
> Joey.
>
> Joey Kellner
> Littleton, Colorado
>
> On Friday, October 7, 2022 at 2:17:47 PM UTC-6 Joey Kellner wrote:
>
>> COBIRDERS,
>>
>>
>>
>> I’ve attached a number of photos showing different views/angles of the
>> PURPLE/ROCK SANDPIPER.  The very pale underwings and thick, white
>> upperwing seem consistent with Rock Sandpiper (however I do not know
>> about immature plumages of Purple Sandpiper).  The bill and leg color
>> and the overall face pattern look better for Purple Sandpiper.
>>
>>
>>
>> Purple Sandpiper is more likely distribution-wise, but “birds have wings”.
>>
>>
>>
>> Perhaps someone can forward the below link to Paul Lehmann since he has
>> extensive experience with Rock Sandpipers in juv. and imm. Plumages.
>>
>>
>>
>> Below is the link…you all can view and consult various references.
>>
>>
>>
>> https://ebird.org/checklist/S120137387
>>
>>
>>
>>
>>
>> Joey Kellner
>>
>> Littleton, Colorado
>>
>>
>>
>>    Y
>>
>>   (oo)
>>
>>    ) )        _
>>
>>   ( (        ( '<
>>
>>    ) )       // )
>>
>>   ( (       / ""
>>
>>     ) )
>>
>>    ( (
>>
>>     v
>>
>>
>>
>>
>>
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