@article{Su_rez_1997, title={Conservation status and farmland requirements of pin-tailed sandgrouse Pterocles alchata and black-bellied sandgrouse Pterocles orientalis in Spain}, volume={82}, ISSN={0006-3207}, url={http://dx.doi.org/10.1016/S0006-3207(97)00008-6}, DOI={10.1016/s0006-3207(97)00008-6}, number={1}, journal={Biological Conservation}, publisher={Elsevier BV}, author={Suárez, Francisco and Martínez, Carmen and Herranz, Jesús and Yanes, Miguel}, year={1997}, month=Oct, pages={73–80} }