These threatened species have particular habitat requirements and have suffered declines due to land use changes. Steppic birds affected by the Catalonian project include Bonelli’s Eagle, the Stone Curlew, the Black-bellied Sandgrouse, the Pin-tailed Sandgrouse, the Dupont’s Lark and the Lesser Grey Shrike.
Les oiseaux concernés par le projet prévu en Catalogne sont les suivants: l'aigle de Bonelli, l'œdicnème criard, le ganga unibande, le ganga cata, le sirli de Dupont et la pie-grièche à poitrine rose.
