Article ISI
Bird Conservation International  (2012)

International importance of Extremadura, Spain, for overwintering migratory dabbling ducks: a role for reservoirs.

Navedo, J.G.; Masero, J.A.; Sánchez-Guzmán, J.M.; Abad-Gómez, J.M.; Gutiérrez, J.S.; Sansón, E.G.; Villegas, A.; Costillo, E.; Corbacho, C.; Morán, R.