30Finally, in the fourth place, as regards the partial classification of certain regions, the Court has already held, first, that classification as an SPA cannot be the result of an isolated study of the ornithological value of each of the areas in question but must be carried out in the light of the natural boundaries of the territory in question, and, secondly, that the ornithological criteria which alone form the foundation of the classification must have a scientific basis (judgment in Commission v Ireland, C‑418/04, EU:C:2007:780, paragraph 142).
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