Hello, I saw these gulls at the Ebro Delta (Spain) during the first week of July. There are three folders, each one includes pictures of a different moment (therefore, species might be different).
In the third folder, there are many Audouin's gulls, but the one I am trying to identify is the yellow-legged one.
https://drive.google.com/open?id=1L9xVQ--lv-LO2YgWyyFBT8KWDE0SYWKf
In the third folder, there are many Audouin's gulls, but the one I am trying to identify is the yellow-legged one.
https://drive.google.com/open?id=1L9xVQ--lv-LO2YgWyyFBT8KWDE0SYWKf
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