76The fact that, according to the results of observations made by the wind farm ‘AES Geo Energy’, to which the Republic of Bulgaria refers, red-breasted geese still use the areas in question and that, when the wind conditions are favourable, migratory birds are concentrated in the Kaliakra site does not stand in the way of that finding. The obligations to protect exist before any reduction in the number of birds has been observed or before the risk of a protected species becoming extinct has materialised (see, to that effect, judgment in Commission v Spain, C‑186/06, EU:C:2007:813, paragraph 36 and the case-law cited).
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