Locustella? Of spain (1 Viewer)

GWB77 said:

The bird has a dark alula, which eliminates Savi's Warbler straight away.

Trying to claim anything based on the relative length/ratio of the tail/UTS'c is a moot point (and based on a single images, taken at an odd angle, and only half the tail being visible!).

Furthermore,h Reed Warbler (by some margin) would be statistically be much more likely than Savi's

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KenM said:

The tonal value of alulas are very much light and angle dependant, in this case it’s in shadow, which would make it appear darker than it was, if you were attempting to view with the light coming from directly above, I’d suggest that you would get a much paler tone.

However that’s a side issue and not really relevant, compared to “what you can see” in relatively good light, to my eye one can see the underparts clearly and they end “seamlessly” (the operative word) at tail end, irrespective of whether it’s half, quarter or third of tail showing on the image.

I wouldn’t know whether the OP’s site location in Spain is known or otherwise, perhaps some local input might be useful.

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smiths said:

Clearly a Reed Warbler indeed.
One can even see the emargination on 3rd primary, creating a crooked wing shape.
Savi's lacks emarginations and shows neatly curved outer primaries.
Also, Savi's has pinkish legs without yellow soles.
Head pattern is different too, as is the overall colour of the plumage.
The tail is largely hidden behind the reed blades here, and the undertail coverts are not visible.

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