1.In the light of the requirements referred to in Article 2, Member States shall take the requisite measures to preserve, maintain or re-establish a sufficient diversity and area of habitats for all the species of birds referred to in Article 1.
2.The preservation, maintenance and re-establishment of biotopes and habitats shall include primarily the following measures:
(a)creation of protected areas;
(b)upkeep and management in accordance with the ecological needs of habitats inside and outside the protected zones;
(c)re-establishment of destroyed biotopes;
(d)creation of biotopes.