| Sterne de Dougall Sterna dougallii © A. Peresse / LPO-IDF |
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| Sterne de Dougall Sterna dougallii © A. Peresse / LPO-IDF |
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| Sterne élégante Sterna elegans © A. Floch / LPO-IDF |
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| Sterne élégante Sterna elegans © A. Floch / LPO-IDF |
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| Sterne hansel Sterna nilotica © A. Peresse / LPO-IDF |
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| Sterne hansel Sterna nilotica © A. Peresse / LPO-IDF |
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| Sterne hansel Sterna nilotica © A. Peresse / LPO-IDF |
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| Sterne hansel Sterna nilotica © F. Gonod / LPO-IDF |
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| Sterne hansel Sterna nilotica © F. Gonod / LPO-IDF |
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| Sterne hansel Sterna nilotica © F. Gonod / LPO-IDF |
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| Sterne hansel Sterna nilotica © F. Gonod / LPO-IDF |
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| Sterne hansel Sterna nilotica © F. Gonod / LPO-IDF |
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