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Sterna nilotica

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Gelochelidon nilotica 2.JPG ThumbnailsChroicocephalus ridibundusThumbnailsChroicocephalus ridibundusThumbnailsChroicocephalus ridibundusThumbnailsChroicocephalus ridibundusThumbnailsChroicocephalus ridibundusThumbnailsChroicocephalus ridibundusThumbnailsChroicocephalus ridibundus

Sterne hansel, Gelochelidon nilotica
(Gmelin, 1789)