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Unable to identify Calidris (Spain) (1 Viewer)

yarrellii

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Where: Natural Park "Salinas de Ibiza y Formentera", Ibiza, Spain.
When: 12.Sept.2020

Small, probably juvenile Calidris, but I'm unable to surely identify the species.
Most notable features are a reddish/brownish stripe on upper part, black beak, not especially long that does not seem to curve downwards, like in the case of the dunlin (C. alpina) and black legs.
So I'm left wondering whether it is a Little stint (C. minuta) or, wild guessing due to the migration season, Western sandpiper (C. mauri) or else a Semipalmated sandpiper (C. pusilla).

Here's a link to a larger file, so you can see the minute details, like the reddish/brownish upper parts:

https://ibb.co/sRdbsnd

What do you make of it? Thanks :)
 

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Well, that's an unanimous verdict, then! :)
Thanks all for the great response.

(And that's a lifer for me :D)
 
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I just want to note that upon seeing this I thought "well there is a comparison with the plover and Little Stint would be smaller, so lets check the measurements" and I learned that Western/Semipalmated Sandpipers are actually exactly the size of a Little Stint, which quite surprised me!
 
I just want to note that upon seeing this I thought "well there is a comparison with the plover and Little Stint would be smaller, so lets check the measurements" and I learned that Western/Semipalmated Sandpipers are actually exactly the size of a Little Stint, which quite surprised me!

In fact, at least the semipalmated is a little bit bigger than the little stint, but just noticed at close range.
 
In fact, at least the semipalmated is a little bit bigger than the little stint, but just noticed at close range.

Maybe on average, but Collins lists significant overlaps, so I just wouldn't count on it as an ID mark. In any case, this is a heads up for me to watch my "Little stints" a bit more closely.
 
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