The TV Program "Espacio Protegido" (protected area), of Canal Sur Andalusia TV, 20 September 2017, shows us how specialists of the University of Huelva and the Doñana Biological Station EBD-CSIC collect bird pellets to study what small mammals live in a certain area. Bird pellets are remains (bones or hair, for example) of preys that birds like owls are unable to digest. The project has developed a website that facilitates the educational application of this information and allows citizen participation.

See documantry