Judgment_paragraph 18 · Ligue royale belge pour la protection des oiseaux ASBL and Société d'études ornithologiques AVES ASBL v Région Wallonne, intervener: Fédération royale ornithologique belge ASBL (C-10/96)

18The breeding and reproduction of protected species in captivity may constitute such a solution if they prove to be possible (Case 247/85 Commission v Belgium [1987] ECR 3029, paragraph 41).